I was going to send M$ a nasty gram, because I also did the IE11/Win 7 update and it set my system back to a default. Thought I lost all my Firefox bookmarks and saved passwords, etc.

A system shutdown, wait a bit, reboot did the trick for me.

Sorry to hear about this, but I understand your frustration.

 

"Few are agreeable in conversation, because each thinks more of what he intends to say than that of what others are saying, and listens no more when he himself has a chance to speak." - Francois de la Rochefoucauld

Intel Core i7 920, 24GB RAM, GeForce GTX 1050 4GB video, 6TB HDD space
Poser 12: Inches (Poser(PC) user since 1 and the floppies/manual to prove it!)