On my Surface Pro 4 I'm missing a good bit of the functionality of RSAT. Here is what I'm seeing:
Another fun bit is right clicking and adding a new user/OU/etc just doesn't do anything at all.
And randomly the Properties options doesn't do anything and you have to close ADUC and reopen it to get into the properties.
Other times opening a random user/OU/etc results in "Active Directory Administrative Center must close due to an unknown error" messages.
I've tried removing RSAT and re-installing it. I've made sure all of RSAT is installed. I've also copied tsuserex.dll and tsuserex.dll.mui from a working 2012 machine into system32 and system32/en-us and registered the DLL. None of that has resolved the issue. Also verified that en-US is the only language installed. Any other ideas?