When the keyboard cannot work, check the connection and power supply first: 1. Make sure the USB port is plugged in or replace the interface; 2. Check the battery level and receiver connection of the wireless keyboard; 3. Check whether the keyboard light is normal. If there is no problem with the connection, go to Device Manager to update or uninstall the driver and restart the computer. Then troubleshoot the system settings and software conflicts: try safe mode testing, check Fn key combinations, uninstall the software that may conflict, and use the Windows troubleshooting function. Finally, judge the hardware damage: Use another keyboard to test, or connect the current keyboard to another computer for testing; if the built-in keyboard of the laptop is damaged, it is recommended to contact a professional for repair.

The keyboard not working on Windows is a very common problem, sometimes it is a system glitch, and sometimes it is a hardware problem. Don't rush to restart your computer or change your keyboard. You can follow the steps to check it out.

Check basic connections and power supply

Many times the keyboard does not work because the connection is loose or powered (especially wireless keyboard). Check the following points first:

• Is the USB port plugged in properly? You can try changing the USB port
• If it is a wireless keyboard, check if the battery is powered or if the receiver is plugged in stably
• A keyboard with light can see if the light is on or not. If it doesn’t turn on, it may be that there is no power or no connection.

This stage can solve the most problems and are most easily overlooked. If you confirm that the connection is OK but it still cannot be used, you can proceed to the next step to troubleshoot.

Try using Device Manager to fix

Windows' device manager can often help you identify hardware problems. The operation method is as follows:

1. Press Win X and select Device Manager
2. Find the "keyboard" item and expand to see if there is any yellow exclamation mark
3. If so, right-click on the device and select "Update Driver"
4. Or uninstall the device directly, and restart the computer to allow the system to re-identify

Sometimes the driver is incompatible after the system is updated, which can also cause the keyboard to fail. In this way, it can be restored to normal use in many cases.

Check if it is a system setup or conflict issue

Sometimes the keyboard is not broken, but is disabled by the system, or it is a conflict between third-party software. for example:

• Did the Fn key combination accidentally press the keyboard to fail?
• Are some security software or input method tools installed affecting the keyboard?
• You can try to enter safe mode to test whether the keyboard is normal

If it is a system setup problem, you can also check if there are exception options in "Settings > Devices > Input". In addition, using the "Troubleshooting" feature that comes with Windows may also help you find the problem.

The possibility of hardware damage cannot be ignored

If you have tried all the above methods but still can't do it, you have to consider whether it is a problem with the keyboard itself. Can:

• Take another keyboard to try it out
• Connect the current keyboard to another computer to see if there is any response

If the keyboard is built with the laptop and it is confirmed that the hardware is damaged, it may require repair or replacement of the keyboard module. In this case, it is not realistic to do it yourself, so it is recommended to find a professional to deal with it.

Basically, these are the methods. When encountering problems, they can be solved step by step. Most of the time.

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