I have a PC (XP Pro, Windows Updates current) where a user clicked on a bad link in an email (shocking) and picked up one of the FBI Warning takeover malware. No ability to even bring up the Task Manager, and all that jazz. They attempted to reboot into Safe Mode, but it would reboot itself when trying to do so. Which also happened when trying to get back into Normal. Or using Last Known Good Configuration. Or anything else. As such, there's no ability to run any of the tests and find anything out ahead of time. I'm wondering what the best way to try to peel apart the first layer of this onion is. Run CHKDSK off another boot disk to start, just in case the malware is running afoul of a pre-existing bad sector? Or is this something that's known from the FBI Takeover stuff at this point? I've cleaned up a few of these machines before, and from the beginning some would stop the user from going into Safe Mode... but you could always get back to Normal. Are they pulling something new now that can cause this boot-looping behavior straight off? Thanks in advance for any advice.