Is this part about admin rights relevant? I'm confused as I don't see why that would matter.
I'd be curious to know what method you tested then - it might be a good place to start.
Yes, if I runWhy are you using RECONFIGURE?
Have you tried not using that?
[COLOR=#333333]SELECT * FROM OPENDATASOURCE('Microsoft.ACE.OLEDB.15.0','Data Source="C:\Databases\dbNorthwind.accdb"')...tblCustomers;[/COLOR]
Msg 7403, Level 16, State 1, Line 2. The OLE DB provider "Microsoft.ACE.OLEDB.15.0" has not been registered.