Hey guys, having a tough issue with my PC. Windows 7 - 64bit My virus scanner (AVG) was down for a week or two and I got a virus in that time. The fake virus scanner virus and also one that pops up random ad websites. I did some virus scanning but now when I try to run a program, it won't do anything. I'll see it pop up in task manager for a few seconds, then go away again. Happens even in Safe Mode. Let me list the things I've done: Session 1: Safe Mode Ran: Super ANTISpyware, Malwarebytes, Spybot, HiJackThis, CCleaner Result: Got rid of fake virus scanner, but not website popups. Session 2: Safe Mode Ran: Same programs + Ad-Aware Result: Aforementioned issue - programs won't run. Session 3: Booted off of UBCD4Windows disk. Ran: McAfee Stinger, Avira, Super ANTISpyware, SpyBot, Avast! Tool Result: Same - Programs won't run. Session 4: Scanned HDD externally from another Windows 7 machine. Ran: Super AntiSpyware, Spybot, Malwarebytes, AVG, Anti-Malware (formally a-squared) Result: Same - programs won't run. Session 5: Safe Mode Tried: rkill (tried exe, scr, com, and the other variations), ComboFix - neither will run Tried: Renaming rkill to notepad.exe and running from Windows folder - same problem, although notepad itself will work Tried: Uninstalling Ad-Aware (in Safe Mode and normal mode) - gives error "Cannot access the Windows Installer service" So I'm at a loss at what to do now. Any suggestions guys? Anyone come across this? Thanks for any advice.