First a weird program error, than a memory error, now computer won't start

I'm completely inept when it comes to computers. I happened to be visiting my parents this past weekend and from the other room heard the sound of an error. When I went inside to look, there were a bunch of error messages on the screen. The first one was telling me that kjoria.exe has crashed- whatever that is. Then I got two errors for a program called dwm.exe. Then I started getting errors about my hard drive needing a defrag, then memory errors, and some peculiar scan started on my screen. Right away I shut it off, and rebooted in safemode.

I immediately assumed this was a virus, and started a virus scan. A few minutes into it, I happened to notice a folder in one of the hard drives that my parents had never seen before- full of numbers and a file cal
led something like mrstub, or mrtstub. After doing some research on that, I found that it was was something that placed itself in my system32 file, and was a virus. After deleting it from system32, and the other file it was in, I waited for the virus scan to finish. When it did over 75 objects which were infected were quarantined, but when I went to remove it told me some couldn't be removed. The ones that couldn't be removed were things that started with HKEY... and something else that i can not remember. After I removed, malware (my antivirus) told me to restart to make the changes permanent, and I haven't been able to start it up since (safe-mode or otherwise).

It will load up until the windows xp screen starts, and then just starts all over again. I wish I could include some of the specific numbers and letters involved in the memory errors, but when the weird scan started, I turned the computer off immediately before i could actually write anything down. Like I said I'm not really good with computers, but my parents are older and would be lost without their lottery numbers and bejeweled.

Any suggestions? Again- no one had been near this computer in over an hour when all hell broke loose.

Thanks to anyone who can help me.
 
The best advice we can give you is go to our Virus and Malware forums and then read and follow the advice exactly as given in the UPDATED 8 Step sticky. Post on that forum when you completed the steps or need help with the steps.

Good luck.

By the way, what security are they running? Are they behind a router?
 
Ok thanks for the reply. Th only reason i posted here in the first place honestly, was that at this point the computer doesn't boot at all. I read the 8 post sticky thing, but can't do any of that, as it just doesn't boot. I'll post there anyhow.

Thank you.
 
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