If I do a complete reset of my Windows 8.1 computer will it reinstall the last/latest windows 8.1 OS or will it rest to factory operating system which was W 8.0? Or, if I update this current 8.1 to windows 10, then do a complete reset, will it reinstall to the last OS (Windows 10) or will it reinstall the factory provided 8.0?
Reason I'm asking is I've been using this computer on 8.0/8.1 for over 7 years and its getting slow. I have a new W10 desktop on order and want to use this old laptop as a spare and back up.
And, I don't want to be stuck with an old 8.0 OS.


Does the noise in your head bother me ?