I'm not sure I still have a virus, but my computer is a mess. Critical processes keep crashing with apparent memory errors. I don't think they're really memory errors because the computer wasn't having memory problems before and passes a surface scan test, but even the task manager crashes.
Let me back up. My high school age son saw a message on facebook, I believe, that said that our computer was infected, so he downloaded and ran Windows Antivirus Pro -- not sure which version any more. Big mistake!
When I realized what he had done, I started trying to figure out how to remove the infection, but all of the websites offering solutions were "unavailable" or "no longer existed." That's when I knew I was in trouble. Shortly thereafter, the computer went down by itself. I blocked the reboot temporarily while I used another computer to try to gather information on what to do. Unfortunately, I didn't know about this site at the time.
Later, I tried to boot the machine, but, although it initially booted up completely, it kept going down. Eventually, I managed to get into recovery mode and reinstall the OS. Unfortunately, that didn't solve the problem. I was able to boot up the computer and log in as Compaq Administrator, but processes kept crashing -- key processes like the login process and the task manager.
Fortunately, I was able to back up all of the user data and shared pictures -- including about 18 months of family photos that I had failed to back up earlier -- onto CD's.
I was also able to install AVG. I used it to do a complete scan and it found and claims that it removed Windows Antivirus Pro. It also said that it found a few obscure Trojan Horses that I couldn't find any information on and removed them too.
I was hoping that that would be the end of my problems, but it wasn't. Several key processes continue to crash. In order to use the one existing account, I have to start the task manager using ctrl-alt-del, set aside the error message window without closing it, run another task manager using ctrl-alt-del again, click on "new task" and type "explorer" in order to get an explorer bar at the bottom of the screen. I was able to install a wireless adapter driver and temporarily connect to the internet, but that functionality has gone away again. I could run a cable to my dsl modem if anyone thinks that is useful.
Anyway, I'm about at my wits end. I've backed up everything and verified the backup disks. So, I'm about ready to reformat the hard disk and start over from scratch unless someone has a more benign suggestion.
Any info is appreciated.
Edit: The machine in question is running Windows XP. I'm a thousand miles away right now, so if you need more details, I'll get them for you as soon as I can.
Edited by drphilosopher, 25 August 2009 - 03:54 PM.