If only that really was the solution... I'm running Windows 10 Education. US English is my only language pack installed. I cannot install RSAT. It looks like it installs, as far as the installer is concerned, but on reboot, it's not there, and it shows that it failed to install. I've searched high and low on the internet, and nothing seems to be working. Win10 Edu is another version of Enterprise. Supposedly RSAT works on it. However, nothing seems to be working to get it installed. I updated from a Windows 7 enterprise box to Win10Edu. I ran a Windows 10 Education vm, and installed it clean. RSAT installs fine on a cleanly installed vm, but not on the upgraded box..
