Win7 32-bit system keyboard failure causes the solution that cannot be used

1, may be the interface loose, and sometimes because the computer host or accidentally touched, plug in the interface to try, if it is pinhole, that must be careful oh, accidentally will be inserted, deformation can not be used.

2, USB interface, whether wired or wireless, there may be bad contact, if a long time to pull out to use, will also be broken, if found inserted well not reflected when, is the basic can conclude that the interface can not be used, suggest another interface to try.

3, if the examination of the other is not a problem, it may be a driver, you can go to the Device Manager to see if the keyboard shows yellow symbol, you can use professional driver software to troubleshoot, if you find a computer driver exception, will automatically remind users to download.

4, if the use of wireless keyboard, the wireless keyboard does not need power, but need batteries to replenish energy, when the keyboard suddenly did not reflect, you can consider whether the battery is dead, you can try to change a battery try.

5, the use of command to try, first click the start of the Run option, and then enter CMD Open a command Prompt window, and then copy and paste the following code, and then restart the computer can be.

REG ADD hklmsystemcurrentcontrolsetcontrolclass{4d36e96b-e325-11ce-bfc1-08002be10318}/V upperfilters/t reg_multi_ SZ/D kbdclass/f