Win10 system play Devil May Cry 4 keyboard button failure how to do?

  
Win10 system play Devil May Cry 4 keyboard button failure how to do?

The details are as follows:
The keyboard of the USB interface is replaced by the keyboard of the PS/2 interface. It can be solved perfectly!
The premise is that the PS/2 interface should be behind the host. When accessing the ps/2 keyboard, the computer needs to be turned off in the early stage, otherwise it will be invalid.


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