I have a room full of machines that I have been upgrading from home to pro (Windows 10). All machines that are NOT anniversary update 1607 can be joined to a domain with no issues. All that are the anniversary update will allow me to join to the domain and it restarts and asks for the username and password. Put in my credentials and it provides a generic "cannot log you in" error message.
I've also noticed lusrmgr.msc is missing (Local users and groups) in all of these 1607 upgrades. The earlier build -- no issues and lusrmgr is available.
It's my understanding pro should be able to be joined to a domain. Is this not the case? Thanks ahead of time! :)
Update: If the 1607 is upgraded from home to pro, the same happens. If a 1511 is updated to 1607 after it had already been working with the domain, the same issue will happen AND it will show it is connected to the domain still but the radio button is grayed out. Strange right?
The upgrade was done through the app store in Windows.
LUSRMGR Photo:
Build and specific version of Windows:


winverandControl Panel\System and Security\Systemis reporting the version to be (Home or Professional)? – Ramhound Aug 31 '16 at 14:48Windows 8.0 Professional with Media CentertoWindows 8.1 with Media CenterI had to upgrade the installation again. The installation incorrect reported itself as 8.1 Pro /w Media Center, but was actually 8.1 Professional. – Ramhound Aug 31 '16 at 15:17