Today You might have seen that Windows Server was released and available from Volume center and MSDN etc.

I had previously reinstalled my Hyper-V node at home with a new 2016 eval media and now I wanted to activate it with a license to not have it time out in 170 days

Going into the control panel and trying to change keys was not the way to do it!

Reading about how to do it in 2012 R2 gives a hint that I should use DISM to set the new key instead

And then after two reboots I log in and can verify that my license have been applied 🙂

And if you wonder about 2016 KMS keys you can find them on technet on this link!