How to fix OS, if it is corrupted?

shane24

Estimable
Jul 2, 2015
1
0
4,510
My laptop keeps saying, "diagnosing your PC" then says " preparing automatic repair" what should I do?
 

harryfishrules

Estimable
Jun 26, 2015
43
0
4,610


Is it Windows 8/8.1? If so, enter advanced setup and choose to 'Refresh my PC', it will remove all programs but keep user data.