I've been trying to install the Beta version of the OpenSSH Client and OpenSSH Server on Windows 10 without luck. The feature simply didn't appear as an option for me.
After ensuring all Windows updates were applied, I finally stumbled on this article. I found this article when searching for the error code 0x800f0954 that I received when the Developer Mode package wouldn't install correctly. I followed the recommendation to modify the registry key "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AUUseWUServer" from 1 to 0. After making this change and restarting my machine, the Developer Mode package installed correctly and OpenSSH Client and OpenSSH Server became options I could install.
