Hi,
Fix the following line with hijackthis :
O4 - HKCU\..\Policies\Explorer\Run: [bootstat] C:\WINDOWS\system32\winnnnnnnnnnn2009.exe
restart your pc after doing so and browse to :
C:\WINDOWS\system32\
winnnnnnnnnnn2009.exe <- rightclick and delete this file in bold
Afted doing this download and run free version of MBAM :
http://www.malwarebytes.org/mbam.phpLet us know if that helped