If not, agree simrick, time to try one of these. Indeed, if you are having various problems, doing a repair install could be the best option aside from doing a clean install. That's up to you, with a clean install you start with a fresh OS. However you do loose your setup, so the choice is up to you.
Repair Install Windows 10 with an In-place Upgrade - Windows 10 ForumsThis tutorial will show you how to do a repair install of Windows 10 by performing an in-place upgrade without losing anything.
See the tutorial & at the bottom you will find links to the other options listed.
I see other people are having this prob, I wonder if it was caused by the latest updates?