It appears that the Fixit provides a more complete/clean install compared to the ODT method, but I am unable to find a method to run this silently. We will follow that up with a new install of a different subscription version of O365.  Any guidance is appreciated.

Hi,

To run the removal tool silently, you can use command line to run OffScrub_O15c2r.vbs inside the package:

1. Extract all the contents in O15CTRRemove.diagcab with Winrar other tool.

2. Hold shift + right click the extrated folder -> Open a command window here

3. Type cscript.exe //B //nologo "OffScrub_O15c2r.vbs"

I've tested from myside, it worked. However there will still be an pop-up window when you hit enter after you typed the commandline ask for your confirmation.

I think it also can be done by script. If you prefer using script, you can post a question in this forum.

Let me know the result. thank you.