My system has become crippled by the Win32/Virut virus, as well as several other trojan horse viruses (per AVG). During the download of an application upgrade, a pop-up came up that said the computer had been infected with a virus and asked if I wanted to fix it. In my haste, I clicked OK instead of closing the window. A new DOS window opened momentarily and listed a few .exe files that were loaded and that was it. The download of my upgrade never completed and the system froze. I rebooted and from my desktop I was unable to access any applications. I was told I didn't have permission. I rebooted in safe mode and ran a full system scan with AVG 7.5. It found over 900 instances of the Win32/Virut virus and many other Trojan Horse viruses. It began to repair the viruses, but when it reached 62%, it froze. I rebooted again and then was presented with my Windows Login screen...none of my account logins or administrative logins will work, not even to safe mode. I was reading, and going to follow a similar thread from this site, but now cannot get anywhere. What is my next step here? Thanks!