I have running a desktop computer as a server ATM for personal reasons. I don't have physical access to the computer, I can only access it through Teamviewer. The computer is multiboot, with the default not set to Vista. This means that if/when the computer restarts I don't have access to it anymore. This has happened twice now, and is a pain in the ass (for both me and the people that have to restart it manually). I have no idea what the cause of the restart is, it might be automatic updates or a 3rd party program.
How can I prevent a Windows Vista computer from restarting/shutting down by software means? (obviously pulling the plug will shut the computer down)