Custom data connectors available in Windows 7 but not in Windows 10

We still have not found a solution to this, with users getting further waylayed by this error.  By breaking down several different user expereinces, we are starting to think that it might have something to do with security and program/application rights within our network.  From a Power BI program perspective, would there be anything system setting that would specifically prevent the Custom Connectors folder from being seen by Power BI.  We can access the folder directly in the File Explorer, but Power BI doesn't seen any of it's contents, not even other third-party .mez connectors that we drop in that folder.

Could this be a security/admin rights issue?  If so, in Windows 10, what is a short list of things we should check to see if this is the case?