Windows XP Pro, it started about a month ago, windows firewall, avg free, avg antispyware, 55gig harddrive - 33gigs are used, spybot search & destroy, i didn't knotice any new icons on the taskbar or desktop
UPDATE: I've plugged the harddrive into another computer, and it is still slooooow, so i booted up in linux and am doing virus scans and, malware scans.