An update – KB 3157663 – should be installed BEFORE installing any roles, features or applications into a TP5 system.
Finding the update isn’t easy – no links from the TP5 pages and doesn’t show in search on Bing or if search microsoft.com
You can find it here:
https://support.microsoft.com/en-us/kb/3157663
Lets hope RTM is a bit more organised
under: Windows Server 2016