My IT department upgraded my MSoffice from 2010 to 2016.
Years ago I created a 2003 database back-end with user level security features.
All of my front-ends have been made or converted to the newer access formats as I upgraded to newer versions of access.
In order to keep my user level security, I have maintained using my 2003 back-end.
My shortcuts to start my databases have always pointed to Access and then the database file and then the switch to point to the workgroup file.
This has worked through a few upgrades.
This is an example of my shortcut that I have always used.
"C:\Program Files (x86)\Microsoft Office\Office16\MSACCESS.EXE" " t:\moldroom\purchasing database ver 2\parts data.accdb" /wrkgrp "t:\moldroom\maint records\secured1.mdw"