Quote from ChkitOut:
My pc was totally f*cked up at one point and this app fixed
it perfectly.
http://www.combofix.net/
Quote from the1:
I've used this in the past but you gotta know what you're doing to use this tool. You can mess up your machine even worse if you don't have a clue. I'm no computer pro but I managed to get through it and it worked great.
What I would try first is use another computer and go to www.superantispyware.com and download the .exe onto a disk and install on the infected machine. Run that and see if it helps. This is one of the better free tools out there.