HPxw8000, XPPro. At first I thought I had virus/malware problems but I fear it may go deeper. I can no longer load any .exe. files, can't do a system restore, have no access to installed programs except AFG and Avira which can do scans but are ineffective. I'm attempting to do a clean install which I've done before. HP requires SCSI drivers (downloaded from them) to be installed (F6) but a window "txtsetup.oem could not be found" pops up. HP forums are unhelpful. Many of these problems are completely new to this computer (and me for that matter) so now I'm trying to find a good tech forum (hope this is it.) Is it Ram, motherboard or something else? Not sure how to diagnose it. I'm truly desperate, or ignorant, or both!