Posted 13 May 2009 - 05:46 PM
Hi, I generally consider myself an advanced computer user, but I am completely stumped so wanted to ask the experts for advice. Have any of you heard of such a virus or know of a solution?
My situation is that I have some sort of infection which the first symptom was lagging computer, hourglass, unresponsiveness, and it took a long time to pull up the task manager and I would end tasks for Explorer, etc, and when I finally could interact with the OS again, large amounts of my files were deleted (media files, configuration files, etc - most of the hard drive).
I tried, several times, many different methods to figure out what is going on - boot CD antivirus programs (Avira, Trinity, DrWeb, etc), online scans, etc and found and removed a small number of Trojans (that may have been false positives), then reinstalled the OS, and everything would be fine and I'd be reinstalling software I use (clean versions of freeware/shareware from web sites, things like Winamp, Firefox, Adobe Reader, etc), and the same probably woulud happen again - computer lagging/freezing up, and the majority of the files on my hard drive being deleted.
I tried installing multiple antivirus softwares, firewalls, etc and cannot figure out what is causing this. I ran CHKDSK on all drives to make sure hard drives were OK and they were fine.
I even reformatted my hard drive and completely reinstalled fresh clean licensed Vista and the same problem happened again - how is this possible? Has anyone heard of malware like this? Know of any solutions? I'm at my wits end and have spent the majority of the last 5 days trying to fix this with no success.