I'm using a Dell desktop with Windows XP and as of last week it started running extremely slow. I noticed that of my 500GB hard drive, only 50MB's of space was free. I deleted 30GB worth of files and within minutes the space available went from 30GB to 59 MB. I repeated this several times and every time, the ammout of free space goes to some tiny number after mere minutes.
I do download sometimes so am assuming I've got some type of virus. I have Norton 360, which did not pick up anything, and downloaded and scanned with the free versions of Malwarebytes anti-malware and Super Anti Spyware. The last two picked up some tracking cookies and a trojan (which I think was just a keygen) and I got rid of everything they flagged as potentially dangerous. Unfortunately however, the problem hasn't gone away.
Does anyone know of a virus that would infect in this sort of way? And if so, is there anything I can do to fix it?
I'm not particularly tech-saavy so would appreciate any help you may have!
Thanks in advance,