My laptop is with Nvidia Graphics card and i didn't had any problem during update and till now its working fine over here with update. Anyway good to hear that problem solved
Just reinstalled windows because of this exact problem. Had most of my stuff backed up, and I could boot into Ubuntu to get the rest though. And I was due anyway.. Laptop with Nvidia card like many others, though I seem to remember people with AMD cards complaining as well. Guess it is just a reminder, that every Windows Upgrade is a great time for a clean reinstall..