New
#1
Why do you need a key to upgrade to Build 10240?
Hi. All along I have been running Win10 preview in dual boot. Today I decided to upgrade Win 7 with Build 10240. THe installer is asking me for a key. I could give them the key from the Insider website. But I don't understand... I am installing this from inside Win 7; my Win 7 is legitimate and was activated long time ago. So if I use the Insider key now, what happens when Win 10 is released as RTM and it is supposed to base itself on your existing Windows product as validation? I can't believe that all people using Win 10 preview have been dual booting.