So you are going about your business, playing a rousing game of whatever on your gaming rig running Windows 7 and wham! Your PC turns off, what gives? Well, chances are you are running the beta version of Windows 7, which begins automatically shutting down every couple of hours today. Your beta license has expired and it is suggested that you install Windows 7 RC1 instead. However, be warned that that version will begin doing the same thing on March 1st of next year.