Unsuccessful solution for keyboard failure under Win7 32-bit system

1, may be loose interface, sometimes because the computer host accidentally touched, re-plug the interface to try, if it is pinhole, then be careful, if you accidentally If you insert it, the deformation will not work.

2, USB interface whether it is wired or wireless, there may be bad contact, if you pull it out for a long time to use, it will also be broken, if you find that the plug is not reflected, it is basic It can be concluded that the interface cannot be used. It is recommended to try another interface.

3, if there is no problem checking other, it may be a driver problem, you can go to the device manager to see if there is a yellow symbol on the keyboard, you can also use professional driver software to check if you find the computer If a driver is abnormal, it will automatically remind the user to download it.

4, if you are using a wireless keyboard, wireless keyboard does not require power, but you need a battery to replenish energy, when the keyboard suddenly does not reflect, you can consider whether the battery is dead, you can try to change a piece Try the battery.

5, try to use the command mode, first click the run option in the start, then enter cmd to open the command prompt window, then copy and paste the following code, and then restart the computer.

reg add HKLMSYSTEMCurrentControlSetControlClass{4D36E96B-E325-11CE-BFC1-08002BE10318} /v UpperFilters /t reg_multi_sz /d kbdclass /f