XP Home PC with what I believe is the FBI Moneypak virus. A screen loads shortly after the desktop appears saying that the user needs to pay money to the FBI and such. You can't exit the screen and the screen appears for each user that logs onto the machine.
I attempted to launch safe mode and then run a scan, but each attempt at launching safe mode produces a 0x0000007B blue screen error. I attempted to launch the recovery utility from the XP CD, but the same blue screen error appears.
I was able to use the desktop long enough to launch a chkdsk /f and it ran successfully on the next reboot with no errors or problems found.
What do I need to do to get this machine to a state where I can run a scan on it and clean it up?