Screen Goes Black After Logging In

[AlirezaImani]

Hi ... As I said My screen goes blank after logging in and I just can move cursor ... When I Run explorer.exe from Task manager and Desktop appears It's Theme goes to basic Theme and Also Some of my Softwares doesn't Open and Theyd Stop working when I try to open them ...
I think it's a virus and I scanned for it by NOD32 But It didn't have any effect on this problem ...
Please Help Me !!

( Note : I DOn't have regsvr.exe Virus and My windows is activated ! )

 

[GokAy]

Scan with Malwarebytes Anti-Malware free too.

And try a clean startup - http://www.sevenforums.com/tutorial...ation-conflicts-performing-clean-startup.html