Q. Still me with the OEM and Windows 8.1 with the embedded key. What if I upgrade now, and let’s say 16 months from now I want to go back to Windows 8.1 --can I do that? And then back to windows 10 a few months after that? Can I go back and forth whenever I want long as its on the same PC ?
A. YES, YES and YES, although I can’t imagine any usage scenario where you’d actually want to keep flipping back and forth between two operating systems like that.
To the first YES: the ability to simply revert your upgrade from 8.1 to Windows 10 is for just 30 days. After that you can revert back but it will require a reinstall of 8.1.
To the second YES: If you do the Windows 10 upgrade in the first 12 months it will be free for the lifetime of that device so you will be able to install Windows 10 after that on that system.
Så japp du kan gå tillbaka till windows 7/8 sen tillbaka till Windows 10 när supporten upphör för Windows 7/8