Yes, after losing electricity I unplugged everything, waited a few minutes, and started everything back up. BUT - you inspired me to try again, so I did a restart and lo and behold Windows 10...

Further info: I was able to open Task Manager and it says there are no running apps.

I scheduled the upgrade from Windows 8 to 10 to run after I had gone to bed. Unfortunately, our electricity went out during the installation and all I have now is a black screen. What should I do?...