Hi, I am having some issues with my computer when I go to restart from within Windows, sometimes instead of restarting, the computer simply shuts off instead. It has also done it when I was installing windows and it said that it needed to be restarted to complete installation. Instead of restarting like it was supposed to, it again simply shut off. Sometimes it does it, and sometimes it doesnt. Any reason for this? FYI I am running a recently purchased Shuttle XPC. Any help would be great thanks.