I've a Gateway FX6840-15e 64-bit Desktop running dualboot with Ubuntu.
A few days ago I had a BSOD Bad Pool Header error, which I believe I resolved by resetting my video driver (have had ongoing issues with it, as it is an ATI Radeon no longer supported, but have always had luck with one particular driver version). I mention this in case it is related, but am not posting this in the BSOD section because it should be a resolved error, and thus this a separate but ill-timed issue.
Not long after (Saturday) I cannot get it to shutdown or go into hibernate. I *can* get it to restart. I can also shut down with the cmd shutdown -s command. Otherwise trying to put it into sleep, hibernate, or shut down merely produces a black screen with the drive running, and any disturbance brings me to the log in screen immediately. I have to hold in the button and force shut down. (Usually I just put the computer to sleep when inactive.) The machine runs just fine when active.
What I've tried so far:
-Switching power settings back to default, changing them around
-Turned off fast boot
-Win 10 is updated
-Changed user password (there were reports that this worked for some weird reason)
-No drivers were recently updated, other than that rollback for video
I'm really hoping I don't have to do a clean install, but if that's my last option obviously I'll do it.