IT guys, please help. Somehow I cought a virus

Thanks for the info guys. When I get home from work, I will try a few things. I am running windows 7. The virus won't let me restore my computer. It stops me from opening pretty much anything. I have firefox and it didn't seem to effect it other than giving me pop ups. Explorer on the other hand, it's worthless right now. I really don't know much about computers, but hopefully I won't screw it up to bad. I did notice when I was researching the virus, it seems that it got allot of people in the last week. Maybe they are really pushing it or something.

Thanks again, jeremy