Hey not sure if this would be in the right category because there could be issues with other hardware . The issue is when i perform shutdown within windows 10 it will shutdown, fans turn off . then immediately it will restart into windows. I just recently took all components out, dust everything and reinstalled and still have the same symptoms. The PSU is brand new so thats not the issue and i just bought an SSD, so thats not the problem. I was thinking either the Motherboard or a short in the case power switch headers. The Motherboard is a Gigabyte 9990FX-UD3. when Reinstalling everything I put all components and usb headers in one at a time then start up system and shutdown to see if it was a faulty hardware or header. Any help will be appreciated. Because the fans turn off I dont believe it would be software related.