After todays (7/19) Windows updates my computer keeps shutting off

I just let Windows install todays updates. Everything except Skype (this included an NVidia driver). When the computer started up after the Windows update (with the "don't shut off computer completing updates. etc.) message, the computer shut off. First I thought it was part of the update (and machine would restart) but it was not. Something broke.

I restarted and as soon as hit windows start screen it shut off again. I restarted again and got the "Windows Did Not Start - repair message". I said "run startup repair". Windows shut off during that process. I restarted again, and was able to run the repair process. But once it finished and booted into Windows it shut off again. I was finally able to start Windows so went to command prompt and started to run SFC /Scannow. It shut off during this test.

lastly I thought maybe its an overheat issue. I booted into Windows Safe mode and started the program HWMonitor. It showed my CPU temps at 39 degrees C. Then it shut off again. At this rate I'm going to wear out the on/off button.

Any ideas?

Try a System Restore yet? Do it in Safe Mode (or repair disk/install DVD), hopefully no restarts to interfere the restore. Then install updates one by one (restart after each and wait a bit to make sure it is alright), Nvidia as last.

You can also try just downgrading GPU drivers first, and restore if it does restart like that.

I just got back home and restarted it. It booted up fine this time. I ran sfc /scannow again. No errors found. Seems okay now. I have a restore point before the update too if needed. This is really weird. I'm going to monitor temps for a while.

I tried DISM /online /cleanup-image /restorehealth but it didn't work. something about not recognizing restorehealth. Either I typed it in wrong, or that command doesn't work in Win7. At least for now its back up and running.

Good to hear :) dism works in Win7 but that switch is for Win8+ as far as I know (I am not versed in it)