Hey, my friend is wondering...He has a legit windows 8.1 key and is eligible for free upgrade to 10, as everyone knows But he doesn't use a MSA account and doesn't want to. Once he upgrades to windows 10 through MS update, he wants to do a clean install, how does he know his new win 10 Licence key? For example, I was a windows insider and activation, so far, is binded to my MSA. How does it work for him? I know for me, I just need to run the iso via usb and skip the asking for key bit and sign in to MSA. This has kinda got us stumped. 1000 apologies if this has been answered a million times. PS He does actually have a MSA, but it's just baron. No info on Windows keys etc. He doesn't mind going back to MSA all a bit weird.