Start error, can't boot up

Hello!

Earlier this morning AVG detected a virus in disk.sys or called Win32/Alureon.Patched. (I think) It wasn't removing it so I used Malwarebytes and removed some other infections that were possibly related. It asked me to restart my computer, fine. I restart my computer and now Windows won't boot up. Right before it gets to the login page it gets a BSoD and restarts.
The error code is: ***STOP: 0x0000007E (0xC0000006, 0x804f8E58, 0xF8B4ABDC, 0xF8B4A8D8)

I also don't have my WinXP disk or my WinXP serial so I don't know what to do if I have to reinstall windows.
I'm also not sure if the virus, or removing it, had anything to do with this problem.

 

Could you press F8 on boot to do a return to an original config that worked? Saw this on it-> http://www.wiki-errors.com/wiki-errors.php?wiki=0x0000007e

 

It does the same thing, even when I boot into Safe Mode.
It might have a different error code though, I'll check.

E: Nope, same thing.