so yea, my little cousin came over and spent like a weekend at my house, and the little perv decided to go porn surfing on my computer...so now i have like tons of popups when im going to sites like ...yahoo, or google...i was wondering if anybody knew of a good program(preferably free) that i could use to delete all that crap ... like torjans, worms, or whatever from my computer? ... if anybody can help...it would be great..

thank you