Hi I have a problem with my PC (Vista), it keeps restarting. It loads all the way to the desktop and then restarts, It will not load in Safe Mode either it restart just as the windows logo comes up. I have tried running shutdown -a but this does not stop it either. It is a Medion PC just over a year old. I have swapped the RAM and it still restarts. I just wondered if any computer genius' would be able to point me in the right direction.