After I upgraded my laptop to Windows 8, it would not shut down.
I would click on the power button icon and the screen would go black but as soon as I moved the mouse, I was back at the login screen. Restart worked fine. So I would click restart, wait till it got to the BIOS screen and then hold the power button down until my laptop shut off.
I’ve been looking for a solution to the problem. I’ve tried a registry setting to change (I didn’t have to change it – the value was already set as recommended in the change), tweaking different things and finally today I found this simple fix!