Occasionally when trying to shut down windows 10, the screen goes black and it appears that windows has shut down. However, there is still activity on my USB WI-FI and the actual computer hardware continues to run even after 10 minutes. I have to do a reset, bring up windows again and before logging on do a shut down which always works. As an alternative, I have taken to logging off and at the log on screen preforming a shut down from there. That always works