Running Windows 10 with a single SSD. No problems at all for about a year.
Installed a second SSD last night for more space, assigned letter D, got it set up and working, but when I shut down the computer using the shut down option the screen went black with the cursor visible (instead of saying Shutting Down) and then after a minute went completely off while the fans of the tower kept going. They never stopped, I waited about five minutes before pressing the power button manually until it turned off.
Turned it on, and it hung after the Windows loading screen. Waited for a few minutes, tried Control Alt Delete with no results, and had to manually press the power button to shut down again.
Turned it on again and things seemed OK, but keyboard was not responding (it was plugged in and I checked the connection). Mouse worked. Tried to open Windows start menu to shut it down but it would not respond. Control Alt Delete had no response. Shut down by manually pressing the button again.
Turned it on again, this time everything seemed to work fine. Keyboard was fine, could click start menu. Shut it down via the shut down option, but once again the screen goes black with the cursor visible before turning off after about a minute and the computer keeps running.
I took out the second SSD after this to see if the problem would stop, but it did not stop. It still won't shut down properly and still has some weird things happening on startup.
I've looked up answers but I don't quite understand them. I don't know how to mess with the BIOS and none of them went into detail of what exactly to do there. I backed up everything on the computer to be safe, but I would like to avoid having to reinstall Windows if possible.