Windows 10: re-use of Win7 upgrade dvds after Win10 upgrade

I have some Win 7 upgrade dvds from Microsoft, previously used on pc's that have now been upgraded to Win 10.

Q: Can I use a Win 7 upgrade on an old Win XP unit ? Will it be refused as an already used key ?

What I am aiming to accomplish is after getting the XP machine upgraded & updated on Win 7, then using my 32bit Win10 iso, and see where I can go in the upgrade path.

:)

 

Windows 10 clean istall with dual boot

well, here is a workaround I figured out:

1. On the first partition (C there is the win7 ultimate O/S installed.

2. On the second partition (D I install win7 ultimate again.

3. Use the DVD created from the win 10 download page to upgrade the win7 in D:.

4. Skip the product key during installation.

5. Activate win10 after installation.

6. Use the same DVD to re-install win10 in D:, formating the partition during installation (clean install).

How about that?

 

DVD drive missing after upgrading to Windows 10

Since upgrading from Win7 to Win10 my DVD Drive is missing. It apparently didn't come with everything else when I upgraded. How do I find it now? Can I uninstall Win10, go back to Win7 get the DVD drive and reinstall Win10?

Original title: DVD Drive

 

It might work.

You'd be violating the one Windows license per PC, though. The Win 7 license is supposed to be consumed in qualifying the free 10 upgrade. (It's not dead, as you'd be allowed to revert to 7 and activate that.)

 

did a forced W7 install, a few updates, ran the W10 iso install, where progress stopped , waiting for key entry for Win10.
Researched economics of buying W7 Home & installing, then W10 upgrade or just buying a W10 & key to install.
End results as to performance could not be ascertained.
Put Ubuntu on it, its up running, no hoops to jump through, done.
Pleasant ending in reviving an old Dell XPS M140.