So as I understood it, as of last fall, Windows 10 was supposed to accept Win 7/8 keys for clean installs. I was upgrading a family member's laptop - put in a new SSD, did a new install with win10 USB media, but activation wouldn't validate the OEM 7 key. Called Microsoft, they said I had to run the in-place upgrade from 7 to validate the license with MS. Which I thought was the thing they said we don't need to do anymore...? So I did the 10 update on the old drive, put the SSD back in, did a clean install, all validated fine. Was this an OEM key issue, or can you still not actually do a "clean" Win10 install with a 7/8 key? How exactly was the fall update supposed to change the process?