Just upgraded to Windows 10 (Home) from Windows 7. Everything is running fine, except at the very end of the new Windows experience. When I click on Power>Shut down, Win 10 does go ahead with a shutdown and does appear to do just that, with the window going blank. Except, 3 out of 5 times, the computer's power stays on and on, without powering down completely. In the end, I have to remove the battery to kill the power altogether.
This does not happen every time, but does happen often enough to be annoying.
What may be causing this problem?