If you receive, The Referenced Assembly Could Not Be Found. Error: 0x80073701
while trying to install a Windows Feature, the problem is likely region / language related. I have seen this error while installing serious features like Multipath IO and small features like Telnet.
The solution for most is to reinstall the operating system. You can perform an ‘in-place upgrade’ which means putting in a DVD or USB stick that contains Windows installation and running the setup again. You will have to reinstall your programs but you will not loose your data files.
According to several posts/blogs/articles like THIS one, the alternate solution is to set all of the language settings in CONTROL PANEL > REGION to be the same or to edit the registry to remove languages that do not match yours. Take note that these have not worked for me and I end up performing an inplace upgrade.
If you still want to play to avoid reinstalling the OS, the registry key that others point to is:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\PackageDetect