FREE ENGLISH LENOVO THINKPAD E14 (02) PDF USER GUIDE
FREE ENGLISH LENOVO THINKPAD E14 (02) PDF USER MANUAL
FREE ENGLISH LENOVO THINKPAD E14 (02) PDF OWNER GUIDE
FREE ENGLISH LENOVO THINKPAD E14 (02) PDF OWNER MANUAL
FREE ENGLISH LENOVO THINKPAD E14 (02) PDF REFERENCE GUIDE
FREE ENGLISH LENOVO THINKPAD E14 (02) PDF INSTRUCTION GUIDE
FREE ENGLISH LENOVO THINKPAD E14 (02) PDF REFERENCE MANUAL
FREE ENGLISH LENOVO THINKPAD E14 (02) PDF INSTRUCTION MANUAL
FREE ENGLISH LENOVO THINKPAD E14 (02) PDF OPERATING INSTRUCTIONS
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LENOVO THINKPAD E14 (02) PDF SUMMARY:
How do I turn off the computer?
Open the Start menu, click Power, and then select Shut down.
How do I log in to my computer with enrolled fingerprints?
If your computer supports a fingerprint reader, log in to your computer with enrolled fingerprints. See “Use the fingerprint reader (for selected models)”.
What does the indicator on the fingerprint reader show?
- Green, blinking for two seconds, then turn solid on: The computer is ready for fingerprint scan.
- White, solid on: The scan is successful.
How do I connect headphones to listen to the sound from the computer?
Connect headphones with a 3.5-mm (0.14-inch) and 4-pole plug to the audio connector.
How do I connect a headset to listen to the sound from the computer or talk with others?
Connect a headset with a 3.5-mm (0.14-inch) and 4-pole plug to the audio connector.
How do I view the microprocessor information of my computer?
Right-click the Start button and then click System.
How do I create additional user accounts or change account types?
- Open the Start menu and select Settings ➙ Accounts ➙ Family & other users.
- Follow the on-screen instructions.
How do I create a Microsoft account?
Go to the Microsoft sign-up page at https://signup.live.com and follow the on-screen instructions.
How do I open the Start menu?
- Click the Start button.
- Press the Windows logo key on the keyboard.
How do I access Control Panel?
- Open the Start menu and click Windows System ➙ Control Panel.
- Use Windows Search.
How do I launch an app?
- Open the Start menu and select the app you want to launch.
- Use Windows Search.
How do I connect my computer to a local network through the Ethernet?
Connect your computer to a local network through the Ethernet connector on your computer with an Ethernet cable.
What should I do if the computer is connected to a supported docking station or dock?
Use the Ethernet connector on the docking station or dock instead of the one on the computer.
How do I connect to Wi-Fi networks?
- Click the network icon in the Windows notification area. A list of available wireless networks is displayed.
- Select a network available for connection. Provide required information, if needed.
How do I connect a Bluetooth-enabled device?
- Click the action center icon in the Windows notification area, and enable the Bluetooth feature.
- Right-click the Bluetooth icon.
- Select Go To Settings ➙ Add Bluetooth or other device ➙ Bluetooth.
- Select a Bluetooth device, and then follow the on-screen instructions.
How do I access Lenovo Vantage?
Open the Start menu and click Lenovo Vantage. You can also type Lenovo Vantage in the search box.
How do I download the latest version of Lenovo Vantage?
Go to Microsoft Store and search by the app name.
How do I switch the letter case between the upper case and lower case?
Use the Caps Lock key.
What does it mean when the Caps Lock key indicator is on?
You can type uppercase letters.
How do I choose whether to invoke the special function or standard function of the F1–F12 function keys?
- Go to Control Panel and view by Large icons or Small icons.
- Click Keyboard or Lenovo – Keyboard Manager and select the option of your preference.
How do I switch the function of the F1–F12 keys between the standard function and special function printed as an icon on each key?
Use the Fn Lock.
What happens when the Fn Lock indicator is on?
- Press F1-F12 to use the standard function.
- Press Fn+F1-F12 to use the special function.
What happens when the Fn Lock indicator is off?
- Press Fn+F1-F12 to use the standard function.
- Press F1-F12 to use the special function.
How do I mute or unmute the speakers?
Use the corresponding key.
What does it mean when the key indicator is on when muting/unmuting the speakers?
The speakers are muted.
What happens if I mute the speakers and turn off my computer?
The speakers remain muted when you turn on your computer.
How do I decrease the speaker volume?
Use the corresponding key.
How do I increase the speaker volume?
Use the corresponding key.
How do I mute or unmute the microphones?
Use the corresponding key.
What does it mean when the key indicator is on when muting/unmuting the microphones?
The microphones are muted.
How do I darken the computer display?
Use the corresponding key.
How do I brighten the computer display?
Use the corresponding key.
How do I manage external displays?
Use the corresponding key.
How do I enable or disable the built-in wireless features?
Use the corresponding key.
How do I open the Settings window?
Use the corresponding key.
How do I enable or disable the built-in Bluetooth features?
Use the corresponding key.
How do I open a keyboard setting page?
Use the corresponding key.
How do I define different functions for the F12 key?
You can define different functions for the F12 key on Lenovo Vantage.
How do I put my computer to sleep mode?
Use the corresponding key.
How do I open the Snipping Tool program?
Use the corresponding key.
How do I switch between different keyboard backlight statuses?
Press Fn+Spacebar if your computer supports keyboard backlight.
What does Fn+B equal?
The Break key on a conventional external keyboard.
What does Fn+K equal?
The ScrLK or Scroll Lock key on a conventional external keyboard.
What does Fn+P equal?
The Pause key on a conventional external keyboard.
What does Fn+S equal?
The SysRq key on a conventional external keyboard.
How do I put the computer to sleep mode using the keyboard? How do I wake it up?
Press Fn+4. To wake up the computer, press Fn or the power button.
What does Fn+Left arrow key equal?
The Home key.
What does Fn+Right arrow key equal?
The End key.
How do I use the TrackPoint pointing device?
- Pointing stick: Use your index finger or middle finger to apply pressure to the pointing-stick nonslip cap in any direction parallel to the keyboard. The pointer on the screen moves accordingly but the pointing stick itself does not move. The higher the pressure applied, the faster the pointer moves.
- Left-click button: Press to select or open an item.
- Right-click button: Press to display a shortcut menu.
- Middle button: Press and hold the dotted middle button while applying pressure to the pointing stick in the vertical or horizontal direction. Then, you can scroll through the document, Web site, or apps.
How do I disable the TrackPoint pointing device?
- Open the Start menu, and then click Settings ➙ Devices ➙ Mouse.
- Follow the on-screen instructions to disable TrackPoint.
How do I use the trackpad?
The entire trackpad surface is sensitive to finger touch and movement. You can use the trackpad to perform all the pointing, clicking, and scrolling functions of a traditional mouse.
How do I perform a left-click action on the trackpad?
Press the left-click zone. You also can tap anywhere on the surface of the trackpad with one finger to perform the left-click action.
How do I display a shortcut menu on the trackpad?
Press the right-click zone. You also can tap anywhere on the surface of the trackpad with two fingers to display a shortcut menu.
How do I scroll through a document, Web site, or apps using the trackpad?
Put two fingers on the trackpad and move them in the vertical or horizontal direction.
How do I zoom out using the trackpad?
Put two fingers on the trackpad and move them closer together.
How do I zoom in using the trackpad?
Put two fingers on the trackpad and move them farther apart.
How do I open the task view to see all my open windows using the trackpad?
Put three fingers on the trackpad and move them up.
How do I show the desktop using the trackpad?
Put three fingers on the trackpad and move them down.
How do I disable the trackpad?
- Open the Start menu, and then click Settings ➙ Devices ➙ Touchpad.
- In the Touchpad section, turn off the Touchpad control.
How do I enhance my audio experience?
Connect speakers, headphones, or a headset with a 3.5-mm (0.14-inch), 4-pole plug to the audio connector.
How do I change the sound settings?
- Go to Control Panel and view by category.
- Click Hardware and Sound ➙ Sound.
- Change the settings as you prefer.
How do I take photos or record videos using the built-in camera?
- Slide ThinkShutter to the right to uncover the camera lens.
- Open the Start menu and click Camera.
- To take photos, click the camera icon. If you want to record videos, click the video icon to switch to video mode.
How do I connect to a wired external display?
- Connect the external display to an appropriate video connector on your computer, such as an HDMI connector or the USB-C connector.
- Connect the external display to an electrical outlet.
- Turn on the external display.
What do I do if my computer cannot detect the external display?
Right-click a blank area on the desktop, and then click Display settings ➙ Detect.
How do I connect to a wireless display?
Ensure that both your computer and the external display support the Miracast® feature.
- Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices ➙ Add Bluetooth or other device. In the Add a device window, click Wireless display or dock. Then, follow the instructions on the screen.
- Click the action center icon in the Windows notification area and click Connect. Select the wireless display and follow the on-screen instructions.
How do I set the display mode?
Press or and then select a display mode of your preference.
What does “Duplicate these displays” mean?
Display the same video output on both your computer screen and an external display.
What does “Extend these displays” mean?
Extend the video output from your computer display to an external display. You can drag and move items between the two displays.
What does “Show only on 1” mean?
Display the video output only on your computer screen.
What does “Show only on 2” mean?
Display the video output only on an external display.
How do I change display settings?
- Right-click a blank area on the desktop and select Display settings.
- Select the display that you want to configure.
- Change display settings of your preference.
How do I check the battery status?
The battery status icon or is in the Windows notification area. You can click the icon to check the battery status, view the current power plan, change the power mode, and access battery settings quickly.
How do I check the battery temperature?
Open Lenovo Vantage, and then follow the on-screen instructions to view battery details.
How do I charge the computer using ac power?
When the battery power is low, charge your battery by connecting your computer to ac power.
How do I use P-to-P 2.0 charging function?
The USB-C connector (USB 3.1 Gen 1) on the computer feature the Lenovo-unique P-to-P 2.0 charging function. When no ac power is available, this feature enables one computer to supply power to another computer through a USB-C to USB-C cable.
What do I need to ensure before using the P-to-P 2.0 charging function?
- The selected connectors support the P-to-P 2.0 charging function and power delivery function.
- Always On USB and Charge in Battery Mode are enabled in UEFI BIOS of both computers, so that the function works even when the computers are off or in hibernation mode.
How do I enable Always On USB and Charge in Battery Mode?
- Enter the UEFI BIOS menu. See “Enter the UEFI BIOS menu”.
- Click Config ➙ USB to enable Always On USB and Charge in Battery Mode.
How do I use the P-to-P 2.0 function when no ac power is available?
The remaining battery power of computer A should be at least 30% and be 3% higher than that of computer B. To check the battery status, see “Check the battery status and temperature” on page 21. Connect the computers to each other with a USB-C to USB-C cable. In this situation, computer A works as the power supply. Once the remaining battery power of computer A is lower than 30%, computer A stops supplying power to computer B.
How do I maximize the battery life?
- Lower the brightness of the computer display.
- Turn off the wireless features when not in use.
- Use the battery until the charge is depleted.
- Recharge the battery completely before using it.
How do I change what the power button does?
- Right-click the battery status icon in the Windows notification area.
- Click Power Options ➙ Choose what the power buttons do.
- Change the settings as you prefer.
How do I reset the power plan to achieve the best balance between performance and power saving?
- Right-click the battery status icon and select Power Options.
- Choose or customize a power plan of your preference.
How do I enable or disable the Airplane mode?
- Open the Start menu.
- Click Settings ➙ Network & Internet ➙ Airplane mode.
- Turn on or turn off the Airplane mode switch.
How do I set, change, and remove a password?
Before you start, print these instructions.
- Restart the computer. When the logo screen is displayed, press F1 to enter the UEFI BIOS menu.
- Select Security ➙ Password by using the arrow keys.
- Select the password type. Then, follow the on-screen instructions to set, change, or remove a password.
What should I do if I forget my power-on password?
If you forget your power-on password, do the following to remove the power-on password:
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If you have set a supervisor password and remember it:
- Restart the computer. When the logo screen is displayed, immediately press F1.
- Type the supervisor password to enter the UEFI BIOS menu.
- Select Security ➙ Password ➙ Power-On Password by using the arrow keys.
- Type the current supervisor password in the Enter Current Password field. Then, leave the Enter New Password field blank, and press Enter twice.
- In the Changes have been saved window, press Enter.
- Press F10 to save changes and exit the UEFI BIOS menu.
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If you have not set a supervisor password, contact a Lenovo authorized service provider to have the power-on password removed.
What should I do if I forget my hard disk password?
If you forget your user hard disk password or both user and master hard disk passwords, Lenovo cannot reset your passwords or recover data from the storage drive. You can contact a Lenovo authorized service provider to have the storage drive replaced. A fee will be charged for parts and service. If the storage drive is a CRU (Customer Replaceable Unit), you can also contact Lenovo to purchase a new storage drive to replace the old one by yourself. To check whether the storage drive is a CRU and the relevant replacement procedure, see Chapter 6 “CRU replacement”.
What should I do if I forget my supervisor password?
If you forget your supervisor password, there is no service procedure to remove the password. You have to contact a Lenovo authorized service provider to have the system board replaced. A fee will be charged for parts and service.
What should I do if I forget my system management password?
If you forget your system management password, do the following to remove the system management password:
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If you have set a supervisor password and remember it:
- Restart the computer. When the logo screen is displayed, immediately press F1.
- Type the supervisor password to enter the UEFI BIOS menu.
- Select Security ➙ Password ➙ System Management Password by using the arrow keys.
- Type the current supervisor password in the Enter Current Password field. Then, leave the Enter New Password field blank, and press Enter twice.
- In the Changes have been saved window, press Enter.
- Press F10 to save changes and exit the UEFI BIOS menu.
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If you have not set a supervisor password, contact a Lenovo authorized service provider to have the system management password removed.
How do I enroll my fingerprints?
Open the Start menu and then click Settings ➙ Accounts ➙ Sign-in options. Then, follow the on-screen instructions to finish the enrollment.
How do I log in with my fingerprint?
When the fingerprint reader indicator is solid green, tap your finer on the fingerprint reader for authentication.
How do I enter the UEFI BIOS menu?
Restart the computer. When the logo screen is displayed, press F1 to enter the UEFI BIOS menu.
How do I navigate in the UEFI BIOS interface?
- F1: Display the General Help screen.
- F9: Restore to the default settings.
- F10: Save your configuration and exit.
- F5 / –: Change to a lower value.
- F6 / +: Change to a higher value.
- ↑↓: Locate an item.
- ← →: Select a tab.
- Esc: Exit the submenu and return to the parent menu.
- Enter: Enter the selected tab or submenu.
How do I change the startup sequence?
- Restart the computer. When the logo screen is displayed, press F1.
- Select Startup ➙ Boot. Then, press Enter. The default device order list is displayed. Note: No bootable device is displayed if the computer cannot start from any devices or the operating system cannot be found.
- Set the startup sequence as desired.
- Press F10 to save the changes and exit.
How do I change the startup sequence temporarily?
- Restart the computer. When the logo screen is displayed, press F12.
- Select the device that you want the computer to start from and press Enter.
How do I set the system date and time?
- Restart the computer. When the logo screen is displayed, press F1.
- Select Date/Time and set the system date and time as desired.
- Press F10 to save changes and exit.
How do I update UEFI BIOS?
When you install a new program, device driver, or hardware component, you might need to update UEFI BIOS.
Download and install the latest UEFI BIOS update package by one of the following methods:
- Open Lenovo Vantage to check the available update packages. If the latest UEFI BIOS update package is available, follow the on-screen instructions to download and install the package.
- Go to https://pcsupport.lenovo.com and select the entry for your computer. Then, follow the on-screen instructions to download and install the latest UEFI BIOS update package.
How do I restore system files and settings to an earlier point?
- Go to Control Panel and view by Large icons or Small icons.
- Click Recovery ➙ Open System Restore. Then, follow the on-screen instructions.
How do I restore your files from a backup?
Note: If you use the File History tool to restore your files from a backup, ensure that you backed up your data earlier with the tool.
- Go to Control Panel and view by Large icons or Small icons.
- Click File History ➙ Restore personal files. Then, follow the on-screen instructions.
How do I reset your computer?
In the resetting process, you can choose to keep your files or remove them when you reinstall the operating system.
Note: The items in the graphical user interface (GUI) might change without notice.
- Open the Start menu, and then click Settings ➙ Update & Security ➙ Recovery.
- In the Reset this PC section, click Get started.
- Follow the on-screen instructions to reset your computer.
How do I use advanced options?
Note: The items in the graphical user interface (GUI) might change without notice.
- Open the Start menu, and then click Settings ➙ Update & security ➙ Recovery.
- In the Advanced startup section, click Restart now ➙ Troubleshoot ➙ Advanced options.
- Select a preferred option, and then follow the on-screen instructions.
How does Windows automatic recovery work?
Note: Ensure that your computer is connected to ac power during the recovery process.
The Windows recovery environment on your computer operates independently from the Windows 10 operating system. It enables you to recover or repair the operating system even if the Windows 10 operating system fails to start.
After two consecutive failed boot attempts, the Windows recovery environment starts automatically. Then you can choose repair and recovery options by following the on-screen instructions.
How do I create a recovery USB drive?
Attention: The creation process deletes anything stored on the USB drive. To avoid data loss, make a backup copy of all the data that you want to keep.
- Ensure that your computer is connected to ac power.
- Prepare a USB drive with at least 16 GB of storage capacity. The actual USB capacity required depends on the size of the recovery image.
- Connect the prepared USB drive to the computer.
- Type recovery in the search box. Then, click Create a recovery drive.
- Click Yes in the User Account Control window to allow the Recovery Media Creator program to start.
- In the Recovery Drive window, follow the on-screen instructions to create a recovery USB drive.
How do I use the recovery USB drive?
- Ensure that your computer is connected to ac power.
- Connect the recovery USB drive to the computer.
- Turn on or restart the computer. When the logo screen is displayed, press F12. The Boot Menu window opens.
- Select the recovery USB drive as the boot device. Then, follow the on-screen instructions to complete the process.
How do I install a Windows 10 operating system?
Microsoft constantly makes updates to the Windows 10 operating system. Before installing a particular Windows 10 version, check the compatibility list for the Windows version. For details, go to https:// support.lenovo.com/us/en/solutions/windows-support.
Attention:
- It is recommended that you update your operating system through official channels. Any unofficial update might cause security risks.
- The process of installing a new operating system deletes all the data on your internal storage drive, including the data stored in a hidden folder.
- For computer models that are installed with Intel Optane memory, ensure that you don’t install the operating system into Optane memory.
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If you are using the Windows BitLocker Drive Encryption feature and your computer has a Trusted Platform Module, ensure that you have disabled the feature.
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Ensure that the security chip is set to Active.
a. Restart the computer. When the logo screen is displayed, press F1 to enter the UEFI BIOS menu.
b. Select Security ➙ Security Chip and press Enter. The Security Chip submenu opens.
c. Ensure that the security chip for TPM 2.0 is set to Active.
d. Press F10 to save the settings and exit.
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For computer models that are installed with Intel Optane memory, enter the UEFI BIOS menu and select Config ➙ Storage ➙ Controller mode. Ensure that RST mode is selected.
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Connect the drive that contains the operating system installation program to the computer.
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Restart the computer. When the logo screen is displayed, press F1 to enter the UEFI BIOS menu.
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Select Startup ➙ Boot to display the Boot Priority Order submenu.
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Select the drive that contains the operating system installation program, for example, USB HDD. Then, press Esc.
Attention: After you change the startup sequence, ensure that you select the correct device during a copy, a save, or a format operation. If you select the wrong device, the data on that device might be erased or overwritten.
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Select Restart and ensure that OS Optimized Defaults is enabled. Then, press F10 to save the settings and exit.
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Follow the on-screen instructions to install the device drivers and necessary programs.
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After installing the device drivers, apply Windows Update to get the latest updates, for example the security patches.
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Go to Microsoft Store to download and install the latest version of Lenovo Vantage.
For computer models that are installed with Intel Optane memory, continue to enable the Intel Optane memory by doing the following:
- Go to https://support.lenovo.com. Download and install the Intel Rapid Storage Technology (iRST) Driver on your computer.
- Go to Microsoft Store to download and install Intel Optane Memory and Storage Management program.
- Launch the program. Click Intel Optane Memory ➙ Enable Intel Optane Memory, and then follow the instructions on the screen to enable it.
How do I install device drivers?
You should download the latest driver for a component when you notice poor performance from that component or when you added a component. This action might eliminate the driver as the potential cause of a problem. Download and install the latest driver by one of the following methods:
- Open Lenovo Vantage to check the available update packages. Select the update packages you want, and then follow the on-screen instructions to download and install the packages.
- Go to https://support.lenovo.com and select the entry for your computer. Then, follow the on-screen instructions to download and install necessary drivers and software.
How do I disable Fast Startup?
- Go to Control Panel and view by Large icons or Small icons.
- Click Power Options, and then click Choose what the power buttons do on the left pane.
- Click Change settings that are currently unavailable at the top.
- If prompted by User Account Control (UAC), click Yes.
- Clear the Turn on fast startup check box, and then click Save changes.
How do I disable the built-in battery?
- Restart your computer. When the logo screen is displayed, immediately press F1 to enter the UEFI BIOS menu.
- Select Config ➙ Power. The Power submenu is displayed.
- Select Disable Built-in Battery and press Enter.
- Select Yes in the Setup Confirmation window. The built-in battery is disabled and the computer turns off automatically. Wait three to five minutes to let the computer cool.
(E14/R14/S3 Gen 2) How do I replace the base cover assembly?
- Disable the built-in battery. See “Disable Fast Startup and the built-in battery”.
- Turn off the computer and disconnect the computer from ac power and all connected cables.
- Close the computer display and turn over the computer.
- Loosen the screws that secure the base cover assembly and pry up the latches. Then, remove the base cover assembly.
- Install the new base cover assembly in place. Ensure that the latches of the base cover assembly are secured under the base cover assembly. Then, tighten the screws to secure the base cover assembly.
- Turn over the computer. Connect the ac power adapter and all disconnected cables to the computer.
(E15) How do I replace the base cover assembly?
- Disable the built-in battery. See “Disable Fast Startup and the built-in battery”.
- Turn off the computer and disconnect the computer from ac power and all connected cables.
- Close the computer display and turn over the computer.
- Loosen the screws that secure the base cover assembly and pry up the latches. Then, remove the base cover assembly.
- Install the new base cover assembly in place. Ensure that the latches of the base cover assembly are secured under the base cover assembly. Then, tighten the screws to secure the base cover assembly.
- Turn over the computer. Connect the ac power adapter and all disconnected cables to the computer.
What should I do if the computer does not start up after I reinstall the base cover assembly?
Disconnect the ac power adapter and then reconnect it to the computer.
How do I replace a memory module?
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Disable the built-in battery. See “Disable Fast Startup and the built-in battery”.
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Turn off the computer and disconnect the computer from ac power and all connected cables.
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Close the computer display and turn the computer over.
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Remove the base cover assembly. See “Base cover assembly”.
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Open the latches on both sides of the memory module slot at the same time, and then remove the memory module.
Note: A Mylar film might cover the memory module. To access the memory module, peel off the film first.
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Install a new memory module:
a. Place the notched end of the new memory module toward the contact edge side of the memory slot. Then, insert the new memory module into the memory slot at an angle of about 20 degrees.
b. Pivot the memory module downward until it snaps into place. Ensure that the memory module is firmly installed in the memory slot and cannot be moved easily.
Note: If your computer is installed with only one memory module, ensure that the memory module is installed in the memory slot next to the thermal fan assembly.
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Reinstall the base cover assembly.
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Turn over the computer. Connect the ac power adapter and all disconnected cables to the computer.
How do I remove the M.2 solid-state drive assembly?
Remove the screw, and carefully remove the M.2 solid-state drive assembly out of the slot. Take the M.2 solid-state drive out of the bracket.
How do I install the M.2 solid-state drive assembly?
Align the contact edge of the new M.2 solid-state drive assembly with the key in the slot and carefully insert the drive into the slot at an angle of about 20 degrees, then, pivot the M.2 solid-state drive assembly downward and tighten the screw.
What should I ensure when installing the long M.2 solid-state drive bracket?
Two thermal pads are attached underneath the long bracket to prevent possible overheating. Ensure that the thermal pads are not removed or damaged.
What is the replacement procedure for a long M.2 solid-state drive?
- If you are going to replace an Intel Optane memory, disable the Intel Optane memory by doing the following:
- Restart the computer. When the logo screen is displayed, press F1.
- Select Config ➙ Storage ➙ Intel ® Rapid Storage Technology ➙ Intel Optane ➙ Disable.
- Select to preserve user data and select Yes to confirm your operation.
- Select Disable and wait for the process to complete. Note: It might take a couple of minutes or even hours to complete the disabling process. Do not restart the computer until the process is completed.
- Press F10 to save changes and exit.
- Disable the built-in battery. See “Disable Fast Startup and the built-in battery” on page 35.
- Turn off the computer and disconnect the computer from ac power and all connected cables.
- Close the computer display and turn the computer over.
- Remove the base cover assembly. See “Base cover assembly” on page 36.
- Remove the screws that secure the long M.2 solid-state drive bracket and then remove the bracket. Note: Two thermal pads are attached underneath the long bracket to prevent possible overheating. Ensure that the thermal pads are not removed or damaged.
- Remove the screw that secures the M.2 solid-state drive and then the drive pivots upward. Carefully remove the drive out of the slot.
- Install a new M.2 solid-state drive by doing the following: Note: Before installing a new M.2 solid-state drive, ensure that you install the rubber in place first.
- Align the contact edge of the new M.2 solid-state drive with the key in the slot and carefully insert the drive into the slot at an angle of about 20 degrees, then, pivot the M.2 solid-state drive downward.
- Install the screw to secure the M.2 solid-state drive.
- Install the new M.2 solid-state drive bracket and tighten the screws. Note: Two thermal pads are attached underneath the long bracket to prevent possible overheating. Ensure that the thermal pads are not removed or damaged.
- Reinstall the base cover assembly.
- Turn the computer over. Connect the ac power adapter and all disconnected cables to the computer.
How do I remove the speaker?
Remove the speaker first and release the speaker cables, then, remove the speaker and detach the connector of the speaker assembly.
How do I install the new speaker?
Attach the connector of the speaker assembly. Install the new speaker in place first and route the speaker cables, then, install the speaker.
How do I access Control Panel?
Open the Start menu and click Windows System ➙ Control Panel or use Windows Search.
How do I turn off my computer?
Open the Start menu and click Power, then, click Shut down.
What do I do if my computer stops responding?
- Press and hold the power button until the computer turns off. Then, restart the computer.
- If step 1 does not work:
- For models with an emergency reset hole: Insert a straightened paper clip into the emergency reset hole to cut off power supply temporarily. Then, restart the computer with ac power connected.
- For models without an emergency reset hole:
- For models with the removable battery, remove the removable battery and disconnect all power sources. Then, reconnect to ac power and restart the computer.
- For models with the built-in battery, disconnect all power sources. Press and hold the power button for about seven seconds. Then, reconnect to ac power and restart the computer.
What do I do if I spill liquid on the computer?
- Carefully unplug the ac power adapter and turn off the computer immediately. The more quickly you stop the current from passing through the computer the more likely you will reduce damage from short circuits. Attention: Although you might lose some data or work by turning off the computer immediately, leaving the computer on might make your computer unusable.
- Do not try to drain out the liquid by turning over the computer. If your computer has keyboard drainage holes on the bottom, the liquid will be drained out through the holes.
- Wait until you are certain that all the liquid is dry before turning on your computer.
How do I enter the UEFI BIOS menu?
Restart the computer. When the logo screen is displayed, press F1 to enter the UEFI BIOS menu.
How do I disable my trackpad?
- Open the Start menu, and then click Settings ➙ Devices ➙ Touchpad.
- In the Touchpad section, turn off the Touchpad control.
Where can I get the latest device drivers and UEFI BIOS?
- From Lenovo Vantage. See “Install Windows 10 and drivers” on page 31 and “Update UEFI BIOS” on page 30.
- Download from Lenovo Support Web site at https://support.lenovo.com.
What does message “0190: Critical low-battery error” mean and what should I do?
The computer turned off because the battery power is low. Connect the ac power adapter to the computer and charge the batteries.
What does message “0191: System Security – Invalid remote change requested” mean and what should I do?
The system configuration change has failed. Confirm the operation and try again.
What does message “0199: System Security – Security password retry count exceeded” mean and what should I do?
This message is displayed when you enter a wrong supervisor password more than three times. Confirm the supervisor password and try again.
What does message “0271: Check Date and Time settings” mean and what should I do?
The date or the time is not set in the computer. Enter the UEFI BIOS menu and set the date and time.
What does message “210x/211x: Detection/Read error on HDDx/SSDx” mean and what should I do?
The storage drive is not working. Reinstall the storage drive. If the problem still exists, replace the storage drive.
What does message “Error: The non-volatile system UEFI variable storage is nearly full” mean and what should I do?
This error indicates that the operating system or programs cannot create, modify, or delete data in the non-volatile system UEFI variable storage due to insufficient storage space after POST. The non-volatile system UEFI variable storage is used by the UEFI BIOS and by the operating system or programs. This error occurs when the operating system or programs store large amounts of data in the variable storage. All data needed for POST, such as UEFI BIOS setup settings, chipset, or platform configuration data, are stored in a separate UEFI variable storage. Press F1 after the error message is displayed to enter the UEFI BIOS menu. A dialog asks for confirmation to clean up the storage. If you select “Yes”, all data that were created by the operating system or programs will be deleted except global variables defined by the Unified Extensible Firmware Interface Specification. If you select “No”, all data will be kept, but the operating system or programs will not be able to create, modify, or delete data in the storage.
What does message “Fan error. Press ESC to startup with limited performance” mean and what should I do?
The thermal fan might not work correctly. After the error message is displayed, press ESC within five seconds to start up the computer with limited performance. Otherwise, the computer will shut down immediately. If the problem still exists when you starts up next time, have your computer serviced.
How can I decode beep errors with Lenovo SmartBeep technology?
- Go to https://support.lenovo.com/smartbeep or scan the QR Code.
- Download the proper diagnostic app and install it on your smartphone.
- Run the diagnostic app and place the smartphone near the computer.
- Press Fn on your computer to emit the beep again. The diagnostic app decodes the beep error and shows possible solutions on the smartphone.
What self-help resources are available to learn more about the computer and troubleshoot problems?
Use Lenovo Vantage to:
- Configure device settings.
- Download and install UEFI BIOS, drivers, and firmware updates.
- Secure your computer from outside threats.
- Diagnose hardware problems.
- Check the computer warranty status.
- Access User Guide and helpful articles.
- Open the Start menu and click Lenovo Vantage or use Windows Search.
Product documentation:
- Safety and Warranty Guide
- Setup Guide
- This User Guide
- Regulatory Notice Go to https://pcsupport.lenovo.com. Then, follow the on- screen instructions to filter out the documentation you want.
Lenovo Support Web site with the latest support information of the following:
- Drivers and software
- Diagnostic solutions
- Product and service warranty
- Product and parts details
- Knowledge base and frequently asked questions https://pcsupport.lenovo.com
Windows help information
- Open the Start menu and click Get Help or Tips.
- Use Windows Search or the Cortana® personal assistant.
- Microsoft support Web site: https:// support.microsoft.com
What should I prepare before contacting Lenovo?
- Record the problem symptoms and details:
- What is the problem? Is it continuous or intermittent?
- Any error message or error code?
- What operating system are you using? Which version?
- Which software applications were running at the time of the problem?
- Can the problem be reproduced? If so, how?
- Record the system information:
- Product name
- Machine type and serial number
What services are available during the warranty period?
- Problem determination – Trained personnel are available to assist you with determining if you have a hardware problem and deciding what action is necessary to fix the problem.
- Lenovo hardware repair – If the problem is determined to be caused by Lenovo hardware under warranty, trained service personnel are available to provide the applicable level of service.
- Engineering change management – Occasionally, there might be changes that are required after a product has been sold. Lenovo or your reseller, if authorized by Lenovo, will make selected Engineering Changes (ECs) that apply to your hardware available.
What services are not covered during the warranty period?
- Replacement or use of parts not manufactured for or by Lenovo or nonwarranted parts
- Identification of software problem sources
- Configuration of UEFI BIOS as part of an installation or upgrade
- Changes, modifications, or upgrades to device drivers
- Installation and maintenance of network operating systems (NOS)
- Installation and maintenance of programs
What conditions require immediate action?
Products can become damaged due to misuse or neglect. Some product damage is serious enough that the product should not be used again until it has been inspected and, if necessary, repaired by an authorized servicer.
As with any electronic device, pay close attention to the product when it is turned on.
On very rare occasions, you might notice an odor or see a puff of smoke or sparks vent from your product. You might also hear sounds like popping, cracking, or hissing. These might merely mean that an internal electronic component has failed in a safe and controlled manner. Or, they might indicate a potential safety issue. Do not take risks or attempt to diagnose the situation yourself. Contact the Customer Support Center for further guidance.
Frequently inspect your computer and its components for damage, wear, or signs of danger. If you have any question about the condition of a component, do not use the product. Contact the Customer Support Center or the product manufacturer for instructions on how to inspect the product and have it repaired, if necessary.
In the unlikely event that you notice any of the following conditions, or if you have any safety concerns with your product, stop using the product and unplug it from the power source and telecommunication lines until you can speak to the Customer Support Center for further guidance.
- Power cords, plugs, power adapters, extension cords, surge protectors, or power supplies that are cracked, broken, or damaged.
- Signs of overheating, smoke, sparks, or fire.
- Damage to a battery (such as cracks, dents, or creases), discharge from a battery, or a buildup of foreign substances on the battery.
- A cracking, hissing, or popping sound, or strong odor that comes from the product.
- Signs that liquid has been spilled or an object has fallen onto the computer product, the power cord, or power adapter.
- The computer product, power cord, or power adapter has been exposed to water.
- The product has been dropped or damaged in any way.
- The product does not operate normally when you follow the operating instructions.
What should I do in case of service and upgrades of the computer?
Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or your documentation. Only use a Service Provider who is approved to repair your particular product.
Note: Some computer parts can be upgraded or replaced by the customer. Upgrades typically are referred to as options. Replacement parts approved for customer installation are referred to as Customer Replaceable Units, or CRUs. Lenovo provides documentation with instructions when it is appropriate for customers to install options or replace CRUs. You must closely follow all instructions when installing or replacing parts. The Off state of a power indicator does not necessarily mean that voltage levels inside a product are zero. Before you remove the covers from a product equipped with a power cord, always ensure that the power is turned off and that the product is unplugged from any power source. If you have any questions or concerns, contact the Customer Support Center.
Although there are no moving parts in your computer after the power cord has been disconnected, the following warnings are required for your safety.
Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury, seek medical care immediately.
Avoid contact with hot components inside the computer. During operation, some components become hot enough to burn the skin. Before you open the computer cover, turn off the computer, disconnect power, and wait approximately 10 minutes for the components to cool.
After replacing a CRU, reinstall all protective covers, including the computer cover, before connecting power and operating the computer. This action is important to help prevent unexpected electrical shock and help ensure the containment of an unexpected fire that could happen under extremely rare conditions.
When replacing CRUs, be cautious of sharp edges or corners that might cause injury. If you suffer an injury, seek medical care immediately.
What should I keep in mind while using power cords and power adapters?
Use only the power cords and power adapters supplied by the product manufacturer.
The power cords shall be safety approved. For Germany, it shall be H03VV-F, 3G, 0.75 mm2, or better. For other countries, the suitable types shall be used accordingly.
Never wrap a power cord around a power adapter or other object. Doing so can stress the cord in ways that can cause the cord to fray, crack, or crimp. This can present a safety hazard.
Always route power cords so that they will not be walked on, tripped over, or pinched by objects.
Protect power cords and power adapters from liquids. For instance, do not leave your power cord or power adapter near sinks, tubs, toilets, or on floors that are cleaned with liquid cleansers. Liquids can cause a short circuit, particularly if the power cord or power adapter has been stressed by misuse. Liquids also can cause gradual corrosion of power cord terminals and/or the connector terminals on a power adapter, which can eventually result in overheating.
Ensure that all power cord connectors are securely and completely plugged into receptacles.
Do not use any power adapter that shows corrosion at the ac input pins or shows signs of overheating (such as deformed plastic) at the ac input pins or anywhere on the power adapter.
Do not use any power cords where the electrical contacts on either end show signs of corrosion or overheating or where the power cord appears to have been damaged in any way.
To prevent possible overheating, do not cover the power adapter with clothing or other objects when the power adapter is plugged into an electrical outlet.
What should I ensure while using extension cords and related devices?
Ensure that extension cords, surge protectors, uninterruptible power supplies, and power strips that you use are rated to handle the electrical requirements of the product. Never overload these devices. If power strips are used, the load should not exceed the power strip input rating. Consult an electrician for more information if you have questions about power loads, power requirements, and input ratings.
What should I keep in mind while using plugs and outlets?
If a receptacle (power outlet) that you intend to use with your computer equipment appears to be damaged or corroded, do not use the outlet until it is replaced by a qualified electrician.
Do not bend or modify the plug. If the plug is damaged, contact the manufacturer to obtain a replacement.
Do not share an electrical outlet with other home or commercial appliances that draw large amounts of electricity; otherwise, unstable voltage might damage your computer, data, or attached devices.
Some products are equipped with a three-pronged plug. This plug fits only into a grounded electrical outlet. This is a safety feature. Do not defeat this safety feature by trying to insert it into a non-grounded outlet. If you cannot insert the plug into the outlet, contact an electrician for an approved outlet adapter or to replace the outlet with one that enables this safety feature. Never overload an electrical outlet. The overall system load should not exceed 80 percent of the branch circuit rating. Consult an electrician for more information if you have questions about power loads and branch circuit ratings.
Be sure that the power outlet you are using is properly wired, easily accessible, and located close to the equipment. Do not fully extend power cords in a way that will stress the cords.
Be sure that the power outlet provides the correct voltage and current for the product you are installing.
Carefully connect and disconnect the equipment from the electrical outlet.
What is the power supply statement?
Never remove the cover on a power supply or any part that has the following label attached:
Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician.
What is the caution about connecting external devices?
Do not connect or disconnect any external device cables other than Universal Serial Bus (USB) and 1394 cables while the computer power is on; otherwise, you might damage your computer. To avoid possible damage to attached devices, wait at least five seconds after the computer is shut down to disconnect external devices.
What is the general battery notice?
Batteries supplied by Lenovo for use with your product have been tested for compatibility and should only be replaced with approved parts. A battery other than the one specified by Lenovo, or a disassembled or modified battery is not covered by the warranty.
Battery abuse or mishandling can cause overheat, liquid leakage, or an explosion. To avoid possible injury:
- Do not open, dissemble, or service any battery.
- Do not crush or puncture the battery.
- Do not short-circuit the battery, or expose it to water or other liquids.
- Keep the battery away from children.
- Keep the battery away from fire.
Stop using the battery if it is damaged, or if you notice any discharge or the buildup of foreign materials on the battery leads.
Store the rechargeable batteries or products containing the rechargeable batteries at room temperature, charged to approximately 30 to 50% of capacity. We recommend that the batteries be charged about once per year to prevent overdischarge.
Do not put the battery in trash that is disposed of in landfills. When disposing of the battery, comply with local ordinances or regulations.
What is the notice for built-in rechargeable battery?
Do not attempt to remove or replace the built-in rechargeable battery. Replacement of the battery must be done by a Lenovo-authorized repair facility or technician.
Only recharge the battery strictly according to instructions included in the product documentation.
The Lenovo-authorized repair facilities or technicians recycle Lenovo batteries according to local laws and regulations.
What is the lithium coin-cell battery notice?
Danger of explosion if battery is incorrectly replaced.
If the coin-cell battery is not a CRU, do not attempt to replace the coin-cell battery. Replacement of the battery must be done by a Lenovo-authorized repair facility or technician.
The Lenovo-authorized repair facilities or technicians recycle Lenovo batteries according to local laws and regulations.
When replacing the lithium coin-cell battery, use only the same type or equivalent type that is recommended by the manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of. Swallowing the lithium coin-cell battery will cause chocking or severe internal burns in just two hours and might even result in death.
Keep batteries away from children. If the lithium coin-cell battery is swallowed or placed inside any part of the body, seek medical care immediately.
Do not:
- Throw or immerse into water
- Heat to more than 100 °C (212°F)
- Repair or disassemble
- Leave in an extremely low air pressure environment
- Leave in an extremely high-temperature environment
- Crush, puncture, cut, or incinerate
Dispose of the battery as required by local ordinances or regulations.
What are the precautions for heat and product ventilation?
Computers, ac power adapters, and many accessories can generate heat when turned on and when batteries are charging. Notebook computers can generate a significant amount of heat due to their compact size. Always follow these basic precautions.
When your computer is turned on or the battery is charging, the base, the palm rest, and some other parts may become hot. Avoid keeping your hands, your lap, or any other part of your body in contact with a hot section of the computer for any extended length of time. When you use the keyboard, avoid keeping your palms on the palm rest for a prolonged period of time. Your computer generates some heat during normal operation. The amount of heat depends on the amount of system activity and the battery charge level. Extended contact with your body, even through clothing, could cause discomfort or even a skin burn. Periodically take breaks from using the keyboard by lifting your hands from the palm rest; and be careful not to use the keyboard for any extended length of time.
Do not operate your computer or charge the battery near flammable materials or in explosive environments.
Ventilation slots, fans and/or heat sinks are provided with the product for safety, comfort, and reliable operation. These features might inadvertently become blocked by placing the product on a bed, sofa, carpet, or other flexible surface. Never block, cover, or disable these features.
When the ac power adapter is connected to an electrical outlet and your computer, it generates heat. Do not place the adapter in contact with any part of your body while using it. Never use the ac power adapter to warm your body. Extended contact with your body, even through clothing, may cause a skin burn.
For your safety, always follow these basic precautions with your computer:
- Keep the cover closed whenever the computer is plugged in.
- Regularly inspect the outside of the computer for dust accumulation.
- Remove dust from vents and any perforations in the bezel. More frequent cleanings might be required for computers in dusty or high-traffic areas.
- Do not restrict or block any ventilation openings.
- Do not operate your computer inside furniture, as this might increase the risk of overheating.
- Airflow temperatures into the computer should not exceed 35°C (95°F).
What is the electrical current safety information?
Electric current from power, telephone, and communication cables is hazardous.
To avoid a shock hazard:
- Do not use your computer during a lightning storm.
- Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm.
- Connect all power cords to a properly wired and grounded electrical outlet.
- Connect properly wired outlets to any equipment that will be attached to this product.
- Whenever possible, use one hand only to connect or disconnect signal cables.
- Never turn on any equipment when there is evidence of fire, water, or structural damage.
- Disconnect the attached power cords, battery, and all the cables before you open the device covers, unless instructed otherwise in the installation and configuration procedures.
- Do not use your computer until all internal parts enclosures are fastened into place. Never use the computer when internal parts and circuits are exposed.
Connect and disconnect cables as described in the following procedures when installing, moving, or opening covers on this product or attached devices.
To connect:
- Turn everything OFF.
- First, attach all cables to devices.
- Attach signal cables to connectors.
- Attach power cords to outlets.
- Turn devices ON.
To disconnect:
- Turn everything OFF.
- First, remove power cords from outlets.
- Remove signal cables from connectors.
- Remove all cables from devices.
The power cord must be disconnected from the wall outlet or receptacle before installing all other electrical cables connected to the computer.
The power cord may be reconnected to the wall outlet or receptacle only after all other electrical cables have been connected to the computer.
During electrical storms, do not perform any replacement and do not connect the telephone cable to or disconnect it from the telephone outlet on the wall.
What is the liquid crystal display (LCD) notice?
The liquid crystal display (LCD) is made of glass, and rough handling or dropping the computer can cause the LCD to break. If the LCD breaks and the internal fluid gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes; if any symptoms are present after washing, get medical care.
How to use earphones, headphones, or a headset safely?
Excessive sound pressure from earphones and headphones can cause hearing loss. Adjustment of the equalizer to maximum increases the earphone and headphone output voltage and the sound pressure level. Therefore, to protect your hearing, adjust the equalizer to an appropriate level.
Excessive use of headphones or earphones for a long period of time at high volume can be dangerous if the output of the headphone or earphone connectors do not comply with specifications of EN 50332-2. The headphone output connector of your computer complies with EN 50332-2 Sub clause 7. This specification limits the computer’s maximum wide band true RMS output voltage to 150 mV. To help protect against hearing loss, ensure that the headphones or earphones you use also comply with EN 50332-2 (Clause 7 limits) for a wide band characteristic voltage of 75 mV. Using headphones that do not comply with EN 50332- 2 can be dangerous due to excessive sound pressure levels.
If your Lenovo computer came with headphones or earphones in the packaging, as a set, the combination of the headphones or earphones and the computer already complies with the specifications of EN 50332-1. If different headphones or earphones are used, ensure that they comply with EN 50332-1 (Clause 6.5 Limitation Values). Using headphones that do not comply with EN 50332-1 can be dangerous due to excessive sound pressure levels.
What is the choking hazard notice?
Product contains small parts. Keep away from children under three years.
What is the plastic bag notice?
Plastic bags can be dangerous. Keep plastic bags away from babies and children to avoid danger of suffocation.
What is the glass parts notice?
Some parts of your product may be made of glass. This glass could break if the product is dropped on a hard surface or receives a substantial impact. If glass breaks, do not touch or attempt to remove it. Stop using your product until the glass is replaced by trained service personnel.
How do I prevent static electricity damage?
Static electricity, although harmless to you, can seriously damage computer components and options. Improper handling of static-sensitive parts can damage the part. When you unpack an option or CRU, do not open the static-protective package containing the part until the instructions direct you to install it.
When you handle options or CRUs, or perform any work inside the computer, take the following precautions to avoid static-electricity damage:
- Limit your movement. Movement can cause static electricity to build up around you.
- Always handle components carefully. Handle adapters, memory modules, and other circuit boards by the edges. Never touch exposed circuitry.
- Prevent others from touching components.
- When you install a static-sensitive option or CRU, touch the static-protective packaging containing the part to a metal expansion-slot cover or other unpainted metal surface on the computer for at least two seconds. This reduces static electricity in the package and your body.
- When possible, remove the static-sensitive part from the static-protective packaging and install the part without setting it down. When this is not possible, place the static-protective packaging on a smooth, level surface and place the part on it.
- Do not place the part on the computer cover or other metal surface.
What are the operating environment conditions?
Maximum altitude (without pressurization): 3048 m (10 000 ft)
Temperature:
- Operating: 5°C to 35°C (41°F to 95°F)
- Storage and transportation in original shipping packaging: -20°C to 60°C (-4°F to 140°F)
- Storage without packaging: 5°C to 43°C (41°F to 109°F) Note: When you charge the battery, its temperature must be no lower than 10°C (50°F).
Relative humidity:
- Operating: 8% to 95% at wet-bulb temperature 23°C (73°F)
- Storage and transportation: 5% to 95% at wet-bulb temperature 27°C (81°F)
What are some basic maintenance tips for my computer?
Here are some basic points about keeping your computer functioning properly:
- If possible, place your computer in a well-ventilated and dry area without direct exposure to sunshine.
- Store packing materials safely out of the reach of children to prevent the risk of suffocation from plastic bags.
- Keep your computer away from magnets, activated cellular phones, electrical appliances, or speakers (more than 13 cm or 5 inches).
- Avoid subjecting your computer to extreme temperatures (below 5°C/41°F or above 35°C/95°F).
- Avoid placing any objects (including paper) between the display and the keyboard or the palm rest.
- Computer display might be designed to be opened and used at a certain angle. Do not open the display with force. Otherwise, the computer hinge might get damaged.
- Do not turn your computer over when the ac power adapter is plugged in, otherwise, it could break the adapter plug.
- Before moving your computer, be sure to remove any media, turn off attached devices, and disconnect cords and cables.
- When picking up your open computer, hold it by the bottom. Do not pick up or hold your computer by the display.
- Only an authorized Lenovo repair technician should disassemble and repair your computer.
- Do not modify or tape the latches to keep the display open or closed.
- Avoid directly exposing your computer and peripherals to the air from an appliance that can produce negative ions. Wherever possible, ground your computer to facilitate safe electrostatic discharge.
How do I clean my computer?
Clean the computer cover: Wipe it with a lint-free cloth dampened in mild soap and water. Avoid applying liquids directly to the cover.
Clean the keyboard: Wipe the keys one by one with a lint-free cloth dampened in mild soap and water. If you wipe several keys at a time, the cloth might hook onto an adjacent key and possibly damage it. Avoid spraying cleaner directly onto the keyboard. To remove any crumbs or dust from beneath the keys, you can use a camera blower with a brush or use cool air from a hair dryer.
Clean the computer screen: Scratches, oil, dust, chemicals, and ultraviolet light can affect the performance of your computer screen. Use a dry, soft lint-free cloth to wipe the screen gently. If you see a scratchlike mark on your screen, it might be a stain. Wipe or dust the stain gently with a soft, dry cloth. If the stain remains, moisten a soft, lint-free cloth with water or eyeglass cleaner, but do not apply liquids directly to your computer screen. Ensure that the computer screen is dry before closing it.
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