Microsoft will fully replace Control Panel with "Settings" in future Windows 10 buildsAccording to Microsoft Windows Insider guru Gabe Aul and Senior Program Manager Brandon LeBlanc, Control Panel will eventually be going away, deferring to the Settings app. The discussion happened over on Twitter, and here are the pertinent tweets (via Neowin).
Link RemovedWe have received a lot of feedback from Insiders on making it easier to activate Windows 10 on devices that take advantage of the free upgrade offer to genuine Windows by using existing Windows 7, Windows 8 or Windows 8.1 product keys. If you install this build of the Windows 10 Insider Preview on a PC and it doesn't automatically activate, you can enter the product key from Windows 7, Windows 8 or Windows 8.1 used to activate the prior Windows version on the same device to activate Windows 10 by going to Settings -> Update & security -> Activation and selecting Change Product Key. If you do a clean install of Windows 10 by booting off the media, you can also enter the product key from prior Windows versions on qualifying devices during setup.
If it's within the 30 day time limit then yes it will work but after the time limit has passed the only thing that can be activated is Windows 10.This must mean that the earlier OS can be reinstalled, even after one year.
Basically no.If you use a Retail prior version key, does Windows 10 then become a Retail version and can be moved to another system
Check post #586 above and you'll see a video re the new build.Anything exciting/interesting, in the latest build? I've dropped out of the program