I think the pc has a virus. Its a Sony vaio laptop so the hard drive is a PITA to get out to scan on another system. Anyway windows loads but nearly every program i try to load i get a dos window open and close quickly. Even in safe mode. managed to get process explorer to run and when i do try to load a program i get ntvdm.exe listed next t it then quickly dissapears and the program doesn't load. don't know if ntvdm is normally like that. couldn't get mcafee to load or malwarebytes,spybot, hijackthis etc to run scans. Any ideas on what steps to take, leaving reformat as my last resort.