I had a notice today that I needed to schedule a re-start, I went ahead and re-started. After that Start Menu would not work and gave me a "Critical Error" message, that I need to log out and they would try to fix it when I logged back in... NOT. Action Center also would not open. I don't know what else wasn't working. I found the update: KB3093266 and uninstalled it, still not working.
Thankfully Control Panel still worked and I was able to do a System Restore to 9/23/15, then I ran Malwarebytes. Things seem OK now.
So, I am not certain that the update was the culprit. I had been on FB a little bit too but that usually only makes me mad, it doesn't break my computer.
So beware. Be sure you have a restore point just in case. I know if you run CCCleaner, you likely will lose your restore points, so beware.
It took several hours for all this, the sys restore took forever.
Anyway... I hope it was just my computer.
J