i am currently running windows 8.1 Pro and when i started the upgrade to windows 10, everytime it reaches the 30% part where it finishes the copying files part, and it restarts, my computer shuts down completely like *poof* When I put my computer back on, and it says attempting to recover installation, it shuts down AGAIN like *poof* Then when I restart it again, it just goes back to "restoring previous windows" and it restarts then my computer shuts off again like *poof* Then when i put it back on, it comes on normally, and says failed to install windows 10. Thank You Hey Josiah, sorry I can't help, but I signed up to say the same thing is happening to me.Computer shut off this morning during update and then repeatedly while trying to reboot - I don't know if it's going to be able to restore to a working version of 8.1.
Luckily, there are a few ways you can set things up so that Windows will not be able to automatically restart your computer after a Windows update.
The first way is to simply install some bit of software such as this free Shutdown Guard application, which prevents most applications on your computer from shutting down Windows, including Windows Update.
I also have a habit of opening multiple notepad windows containing temporary notes for an article or the like that are never meant to be saved that get lost in these cases.
Or times where I’ve left my computer on overnight transferring large files, such as some of my website databases, only to see the next morning that Windows has helpfully restarted mid-transfer, so now I have to do it over again.
A second method top stop Windows automatically restarting is just to modify your Windows Update settings so that it will only download updates, but not install them until you tell it too (Start - then select from the drop down menu, “Download Updates, but Let Me Choose When to Install Them”).