Viruses make me angry

[vovat]

I think I might have the same virus I did before, and this time my computer won't let me do a System Restore, which seemed to fix the problem last time. The more obvious effects of the virus seem to be gone, but I think it's still on my system, and I don't know how to get rid of it. I have anti-virus software, but it keeps not finding anything. I've been considering reformatting my hard drive, but 1) I don't know how, and 2) even if I did, that wouldn't prevent me from getting another virus in the near future. Has anyone else had this kind of problem recently, and, if so, what did you do about it?