-Assigned the Policy to the OU my test machine is in.
-Forced gpupdate on target machine.
Initially, without going through all these steps, I could get the .msi to deploy to the target machine, but it was only 2015 version, and any attempt to upgrade would prompt an "Error: 111100". I suspected I needed to learn more about these .ini files. That's when I stumbled upon the Customization Wizard.
Now I'm exactly where I started. It installs 2015 version, with no ability to upgrade. Same Error. What am I missing?
Each attempt at installing is to a clean target machine (never had Adobe installed).