1. While on the Log in Screen, click the Ease of access logo.
   
   
2. Place a check in the Type without the keyboard (On-Screen Keyboard) box.
   
   
3. By using your mouse cursor, click and check that all keys are working fine with the On-screen keyboard. Also check the keys that are not working with the physical keyboard.
   
   
   Note: An alternate way to get to the on-screen keyboard if logged in is to select the Windows icon, Settings, Ease of Access, Keyboard. Set the toggle under Use the On-Screen Keyboard to On.

If the computer does not have a password (or use the on-screen keyboard to enter a password, see Use the On-Screen Keyboard (OSK) to type) and can still boot inside Windows, proceed with the following settings:

1. Search for and select Control Panel.
   
2. Select Ease of Access\Ease of Access Center\Make the keyboard easier to use.
   
   
3. Uncheck all the boxes and apply the settings, and restart the computer.
   
   

1. Search for and select Notepad.
   
2. Try typing the keys and see if they work or are displayed in Notepad. If the failed keys work, this may be a software issue. Test the failed keys with different software installed on the PC. If the keys fail with a specific software application, refer to the vendor's software instructions and reset the settings.

Reinstall the keyboard driver.

1. Search for and select Device Manager.
   
2. Expand the keyboards section and find the driver.
3. Right-click the driver.
4. Select Uninstall device.
   
5. Reboot (power off and power on the machine), and let Windows install the driver.
6. If this does not work, try updating drivers.

Make sure drivers are up to date.

1. Go to the web site: https://support.lenovo.com.
2. Select Detect Product.
   
3. Select Drivers & Software.
4. Select Scan Now under Automatic Update or check for keyboard updates under Manual Update.
   

How to roll back a driver if the issue occurred after a recent update.

1. Find the driver in Device Manager.
2. Right-click the driver and select Properties.
3. Select the Driver tab and select Roll Back Driver if the option is available. If Roll Back Driver is grayed out, this means no earlier versions were installed.
4. Reboot the PC.

If gaming mode is enabled, try disabling gaming mode. For Windows 11, see How to access the Gaming section in Windows 11.

1. Open the Windows Settings (Start and Settings).
2. Select the Gaming section.
3. On the left hand menu, select Game Mode and toggle the option to Off.
   

Use keyboard troubleshooting. For more details, see How to run Windows Troubleshooters - Windows 10 and Windows 11.

Windows 10

1. Right-click the Windows icon.
2. Select Settings.
   
3. Select Update & Security.
   
4. Select Troubleshoot. Select Keyboard to fix problems with keyboard settings.
   

Windows 11

1. Select Start and Settings.
2. Select System and Troubleshoot.
3. Select Other troubleshooters.
4. Select Run next to Keyboard.
   

1. Enter Command Prompt.
   • Press Windows + X, then choose Windows PowerShell (Admin) or Command Prompt (depending on the version of Windows 10) or search for command prompt, and then select Command Prompt.
     
2. Under the Administrator: Command Prompt window, test the failed keys.
   • If the failed keys work, the issue should be caused by software, not PC hardware. Test the failed keys with different software installed on the PC. If the keys fail with a specific software application, refer to the vendor's software instructions and reset the settings.
   • If the failed keys do not work, the issue may be with the PC hardware. Please Contact us on the support website. Lenovo local service technicians will provide further diagnosis.

Check if any foreign objects have fallen on the keyboard or if any objects are lodged in the keyboard. Shut down the PC and gently turn over to dislodge debris. See this link for more information, Keeping your computer clean – Notebooks, All-In-One Desktops, Tiny-In-One, and Monitors.

1. Select Start and Settings.
   
2. Select Devices.
3. Select Typing.
4. Set settings back to the default options if they were recently changed.
   

Consider a system restore if your keyboard recently stopped working all of a sudden.

System Restore is a feature that allows you to revert your computer’s state to a previous point in time. If an install failure or data corruption occurs, System Restore can help you return a system to working condition without having to reinstall the operating system.

Restore Windows System by Creating Restore Points：

• For guidance on restoring or reinstalling your operating system, refer to How to restore the system to a system restore point.

Try the following if an external keyboard is not working.

• Check the wireless connection for a wireless keyboard.
• If the keyboard requires pairing, try the pairing steps again.
• If the keyboard requires batteries, check the batteries.
• Try a different keyboard.