New
#11
Hi there
@Saltgrass
@Fafhrd
@NavyLCDR
@kevvyb
actually NOT TRUE -- yiu can still enter a valid W7 / W8 / W8.1 key AFTER W10 is installed and it will activate (the old W7/W8/W8.1 OS must be RETAIL though not OEM).
I needed a NEW W10 VM system Today (4th Feb 2017) and after installing a Brand new W10 (from the media creation tool) on a VM I entered (after boot) a key from W7 - old TechNet subscriber --kept the keys even though I've long since discarded the ISO's.
W7 key Pro worked just fine to activate new W10 Pro install.
Install the OS first --then change product key to activate - enter a valid old Key from the previous OS --even after a CLEAN install.
Not sure how long this legal "loophole" will last so I'm creating 3 or 4 W10 systems while the old keys still work !!.
Cheers
jimbo