Win7 System blue screen prompts code error "Win32k.sys" What to do?

Win7 System blue screen prompts code error "Win32k.sys" What to do?

This is typically caused by a virus violation or a system file defect. The following system box small series for everyone to share the solution.

Steps:

1, from other Win7 system copy a "Win32k.sys" file to the U disk, the path is: c:windowssystem32

2, then the file copied to the problem of the computer in the C:windowssystem32 directory, in the pop-up whether the replacement interface to choose "Yes" can be resolved.