Sorry for the stupid question, but I downloaded the 10240 leak and installed with generic (KMS?) Key, now that Windows 10 is out, is it possible get a key from the copy I reserved while I was running Win 8.1? I looked in the MS store, didn't see anything like a key..
you use your win 8.1 key, install win 8.1 then upgrade with win 10 with it activated with your win 8.1 key then you can do clean win 10 install and it will be activated, MS will have your hardware ID etc.
Oh, thought there might be a way to install and activate Win 10 fresh without installing win 8.1 after you reserved a copy. Guess I'll stick to the KMS method.