You still need to consider overheating at component level or a malfunctioning/stressed power supply.
Hi, I've got a Gateway desktop that I've upgraded the operating system to Windows 7 64 bit. It worked fine for the past month and all of a sudden, it started turning itself off as if someone has pressed the off button. When I turn it back on, it asks me if I want to reboot in safe mode. I've recently tried installing a new printer but the same issue occurs when I have unplugged my printer. It does the same thing whether it's actively being used or being left unattended. I don't think it's an overheating issue because it's located in a relatively cold room.