Arkose: If you want to go back to the previous version after that time you can download official installation media for
Windows 7 and
Windows 8.1 (this Windows 8.1 installer also accepts product keys from the original Windows 8).
Thanks, bookmarked.
So back to the drawing board, which means:
- I need to upgrade my current Windows 7 installation to Windows 8 Pro.
- Then I upgrade that Win8 installation to Win10 (because that will grant me a Windows 10 Pro version, instead of Windows 10 Home I would get with my current Windows 7 Home).
- Then I'll have to see what I do, either clean install back to Windows 7, or clean install Windows 10 Pro again (in case I feel something didn't go quite right with the upgrade, some crap left behind etc.), or stay for now on that upgraded Windows 10 installation.
Just so that I can be sure I can go back to Windows 7, in case I later come into conclusion something doesn't work right for me in Windows 10 (most probably some old Windows game). Or then I decide to play those on my other, older, PCs... Decisions decisions, as long as I have different options still open.