I would go into safe mode and do a system restore to a point before this happened .
I wonder what anti virus you are using? Is it up to date ?
After system restore is finished, I would reboot into Safe Mode with networking , disable the anti virus program and try installing the updates again BUT be careful that you are not installing those KB's that force Windows 10 upgrade.
Upon a recent startup, my dell laptop tried to install windows updates. It froze at 35%. I let it sit for awhile, nothing happened. I tried ctrl+alt+delete, nothing happened. I tried the escape button, nothing happened. I held power butting for a few seconds and forced it to turn off. When I turned it on again, the screen popped up saying windows was not properly shut down and asked me how to start windows. I selected normal. It went back to the windows update screen and froze again at 35%. I forced another power off and removed battery. Restarted in safe mode, hoping to avoid the windows config screen but it still brought the windows config screen up and again froze at 35%. I then forced shutdown and restarted in Safe Mode with Command Prompt. It still went back to the windows config screen frozen at 35%.
How do I get around this??? I need to use my laptop for work and this is severely affecting my life!!!!
I'm not a very techy person. I'm capable of following step-by-step instructions but if the solution involves any programming or words beyond basic English, my eyes will glaze over. I've tried Google searching, but so far solutions I've found assume the safe mode bypasses the windows config screen. Also, I'm in the middle of moving and my recovery disks that came with laptop are packed in a box that I can't access right now, so solutions requiring a disk will not help!
Any suggestions out there? Help is much appreciated! Thanks.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic