I just want to point out that most anti-virus programs are absolutely useless. Norton is one of those, I wouldn't trust anything the program tells me. The best way to get rid of viruses on windows is to have a dual boot of a linux distro, boot into that, and manually remove the virus/malware. The best way to prevent viruses is to open any file you're unsure of in a virtual machine. All Anti-virus programs like Norton are actually far worse for your PC than most viruses. I've never ever had any problems that I couldn't fix myself since i was a 16 year old kid.