Check out the feedback app, a lot of people didn't even get 10158 so far. I got it using a trick, upgrading in a hyper-v machines, copying the $Windows.~BT folder and launching setupprep.exe ...
It it possibly due to the key I used in upgrading the previous build from Professional to Enterprise.
Yes, but he singled out one feature, as if that was as important. No doubt--that's the usual upgrade style via WU--but back then he was talking about for the purposes of going from build to build.
Yes, it is running at services. Well, let me wait for sometime to see if it will activate. If not, I would have to do new installation and revert to Windows Professional.
For tabs use QTTabBar, for colored window borders see this guide I created, it's for changing the caption text color in explorer but once you apply those changes you can also change the color of window borders.
No, You need change to Fast ring, Click "check for updates" few times to get 10158 or 59 that is all to it.