Noticed that Windows had updates pending last night when I shut down my computer.
This morning I turned it on, and I got the video card splash, but then nothing but a blinking cursor in the top right corner.
Ctrl-Alt-Del and it restarted. Hit F…hm…12 I think to go into the BIOS. Got menu to choose boot device. Tried booting from my old, now ‘backup’ drive which still has a copy of Vista on it. Got to Windows log-on screen.
Restarted, chose my main HD. This time, Windows started installing updates. It quit halfway through and restarted. Blinking cursor.
I restarted, chose that drive again, and actually was able to log on to Windows. Everything looked ok. Restarted.