Just been sorting out a W10 desktop for a mate, was fine this morning, then this afternoon Edge stopped working, Chrome would do a Google but not go to the website, and hard drive chunnering away. Tried a restart, took ages. Got fed up, hit the power button for off. Powered on, still "restarting". 30 mins later it finally got going and things worked as normal. If this is what Microsoft considers acceptable I'm glad I stuck with W7.....
Think it was stuck installing an update. Would be nice if it told you so!