Determine if Win 10 can be downgraded back to Win 8.1

What steps are necessary to determine if a Windows 8.1 OS that was upgraded to Windows 10 (with the data and apps being preserved) can be downgraded back to Windows 8.1?
IT GuyNetwork EngineerAsked:
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Lee W, MVPTechnology and Business Process AdvisorCommented:
You know this.  No Microsoft Operating system has ever been DOWNGRADABLE and preserve the apps and data.  IF you want to go backward, you need to backup, reload, and install Windows and all apps.
☠ MASQ ☠Commented:
With the Win 8.1 to Win 10 upgrade you have 31 days when you can revert to the previous system.
If you go to Settings > Update & Security > Recovery within that period you'll see an option "Go back to Windows 8.1"
After 31 days the restore files are automatically deleted and the option vanishes.
Get it while it lasts!

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nobusCommented:
whatever you choose - have a backup first!!
and why do you want to downgrade?  if you tell the reason, we may find other solutions
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IT GuyNetwork EngineerAuthor Commented:
The user doesn't like Windows 10 and would like to revert back to Windows 8.
Shaun VermaakTechnical SpecialistCommented:
Download and install classic shell and tell the user you downgraded 😜
http://www.classicshell.net
nobusCommented:
It guy, i understand.  i also don't like W10; and that's because this system is not made for laptops or desktops, but for mobile devices - smartphones - where you sweep, instead of using a mouse
that involves a lot more submenus, and clicks do the same
BUT - as Always with MS - there's no good way back, since in a couple of years, they won't support the old OS'es.
here my suggestion then :
so make the best adaptions for your customer, and teach him how to use it

eg, in order to get a start menu, i RIGHT click the start button
you find other tips on the net
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