I believe I've been infected with several rogue anti-virus programs, including Windows Antivirus Pro. When I try to run MalwareBytes, HiJackThis, RSIT or any other type of program that scans my machine, the program quits and I'm then "locked out." I then get a message saying, basically, that I don't have permission to access the file. I've tried re-installing MalwareBytes three times with the same result.
The rogue program has changed my desktop to disly play a warning message that says, in part, "DANGER!!! Your computer is INFECTED!"
Again, thank you for any help you can offer.