Office Applications Uninstalled in the Terminal Server

[aljafar0622]

We have installed Office Applications in our Terminal Server which runs Microsoft Windows Server 2012 R2 Standard version 6.3.9600 Build 9600. For some reason, suddenly the Office Applications got uninstalled. When I checked the event logs, it says user is system. I checked the security event logs and no one was logged in at the same time when the Office Applications were uninstalled.

How can it be uninstalled by itself/automatically? Need help.

[#2]

First off,  Are you utilizing the Click 2 Run service?   As in do you have the proper licensing in place or are you just using a volume licensing for your users?  

I could see the system noticing there are different version of office installed and uninstalling one or the other because of what you have installed.  Maybe these different versions are not compatible.  https://support.office.com/en-us/article/install-and-use-different-versions-of-office-on-the-same-pc...    see the link for more information. @aljafar0622