Longish story;

ending(s):
So . . . yesterday, I was getting Generic Trojan warnings from AVG. The warnings came from SVCHOST (bane of my happiness) in some magical system restore directory that AVG couldn't do anything about. Meh meh meh.
Turn everything off, log into Admin account, update AVG, turn off System Restore, and disconnect from the internet. The full scan takes like two hours, and I'm too paranoid to leave the machine logged into the Admin account and connected to the net for two hours, especially unsupervised. Start full scan.
Go to work. Come home hours later.
Scan found nothing this time. Well, fine. Close AVG and fire up Malwarebytes. Try to update, and I get a generic I Can't Update And I Don't Know Why!!!11! error message. In the past, that's meant the damned system's infected with something smart enough to block security software updates. Crap!
Yes, it took me over an hour of effing around before I remembered I'd disconnected the internet connection. Why can't Windows automatically notice when you're trying to access the net but have it disconnected and TELL YOU? Seriously. This would not be difficult.
Bonus: While Malware was running, I happened to glance at its progress and note that it was scanning and scanning and scanning a temp directory I'd never seen before in a weird subdirectory of the root Documents and Settings directory. WTF? When it was done, I went and looked. The subdirectory was only visible from Admin and had
11 GB of trash files. I'd had problems with corrupted files on a flashdisk like a year before, and every time the system had tried to recover them it had apparently created temp subdirectories there with garbled versions of the files. A bunch of the corrupted files were zip files, and those had ballooned gruesomely when it tried to recover them.
Mind you, this machine has a 40 GB drive, so 11 GB of garbage is annoying. Also annoying is that no Remove Junk Files utility had ever found them, either.
Fortunately, and surprisingly, Windows let me erase them without comment or complaint.
