For anyone wondering you can upgrade a Pro install that is activated to Enterprise, then KMS activate with MST. You can delete your Microsoft/insider account when done too if you wish to take back your privacy.
How are you so sure that the version 10240 isn't the RTM ? Because of the official release date is 29/7 ? Well M$ said that insiders will get the RTM earlier. Personally i think that the version 10240 is the RTM and M$ will just release a big update at release.
Hmm. Strange. I did it and after upgrade system became un-activated.. Although my Win8.1 was activated with tokens trick (Win8.1 + tokens from Win8 + legit WMC key). Maybe this is a reason.
Doesn't the Advanced Tokens Manger say that it's iffy with 8.1? Anyways that sucks . It's probably because it's tied to KMS - KMS is not included in the free upgrade, so those activations don't get activated.
I'm pretty sure that's the case too. Windows 8 worked similar, there was a RTM and then a GA patch the day of release to get rolled up to the latest release.
No need for a manager. All you need is tokens from Win8 activated with legit WMC key. When you can switch them to Win8.1, enter key again and volia. Will do another test later today.
I don't think this is the RTM they have sent to manufacturers this is probably a similar build but only for insiders, and yes it pretty clear this isnt the release that will come on the 29th. I don't think MS would use the same key for every user of windows 10 this would mean MS is only using System IDs / UUIDs to record activations.
I would try it, but after the upgrade and user logon screen I just get a black screen and just the mouse point, tried it now 2times, with and without antivirus installed so upgrade not successfuly for me