What should I do if the P/S port mouse keyboard cannot be used after the Win10 system is upgraded? Solution for P/S port keyboard not available

          Solution:
1. Install the keyboard and mouse of the USB port on the computer;
2. Right-click the window icon in the lower left corner or WIN+X button to open the menu and select “Command prompt (admin)” ;

3, in which the input window CMD reg add HKLM \\ SYSTEM \\ CurrentControlSet \\ Control \\ Class \\ {4D36E96B-E325-11CE-BFC1-08002BE10318} /v UpperFilters /t reg_multi_sz /d kbdclass /f; < Br> 4, always determined, and then restart to find the problem solved!
The above is the introduction of the solution for the P/S port mouse and keyboard that cannot be used after upgrading the Windows10 system. The method is very simple. If you upgrade the win10, you also encounter the problem that the P/S port mouse and keyboard cannot be used. If you don't know the reason, then try the above method!