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Stopping installation of Windows 10 upgrade

I did the stupidest thing. I started the Windows 10 update, choosing to upgrade later thinking I could keep postponing the actual upgrade indefinitely until I was sure my main program would work with it. But what I got instead was a choice of today, tomorrow and the next day only! Can I just shut down my machine and will that stop the whole process? Or 1) will it prevent my machine from shutting down properly? 2) will it install the upgrade the next time I reboot? 3) will it install upon reboot if i do a hard shutdown?

More questions:
I'm told that I can delete the KB3035583 files and that will prevent it. But can I do that at this point? If so, where do I find all of them to delete them? Is it possible to do it when I'm one step away from the update starting (see attached jpeg). I know I can revert to 8.1 within the first 30 days but i will need my Windows 8.1 product key. It came with the machine so how do I find that?

Thanks,
John
Schedule-Upgrade.png

ASKER CERTIFIED SOLUTION

Tyler Brooks

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SOLUTION

rindi

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John Carney

ASKER

Thanks to both of you. I feel pretty confident now that I won't have a problem restoring 8.1 if need be. Am I correct in assuming that my files, folders and registry, etc. won't be messed up if I do the restore?

Thanks,
John

Tyler Brooks

No you shouldn't have any issues with it, I've done 2-3 restores now and have yet to encounter any problems. If you want to make 100% sure to cover yourself, use Backup and Restore to create a system image before you do the upgrade and store it on an external drive.

Good Luck!

rindi

Everything stays the same as it was before the upgrade if you do a restore. I have also done it and had no issues.

SOLUTION

Lionel MM

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John Carney

ASKER

Thanks to all of you. I decided to go ahead with the upgrade and so far so good!

~ John