Malwarebytes Anti-malware

http://download.cnet.com/Malwarebyte...-10804572.html

Superantispyware

http://www.superantispyware.com/

OP needs to download these programs, install them, make sure they're updated, and then do a full scan on your comp.

Logging on and off won't fix the viruses. Both of these programs are safe, and easy to use. What anti-virus do you use? AVG have a pretty good free one, if you're stuck.