Yeah, "10" not so "10" when it decides to quit working :M
You might have gotten it into "tablet" mode..
Unfortunately, I haven't played long enough with 10 to know the full in and outs. I depend heavily on some online forums dedicated to W10 to figure this monster out when I get stuck..
I would recommend checking out
TENFORUMS.COM if no one else chimes in here..
If it is Tablet mode, make sure you disable that mode, no one in their right mind would want to run that dreadful mode (Its a PC for goodness sake, not a "tablet"), lots of software doesn't like it either..