A family of Microsoft relational database management systems designed for ease of use.
Select File > Options.
Click Trust Center, then Trust Center Settings...
Click Trusted Locations.
If C:\Program Files (X86)\Microsoft Office\Office15\ACCWIZ\ is not listed as a Trusted Location, click 'Add new location...'.
Enter the path C:\Program Files (x86)\Microsoft Office\Office15\ACCWIZ\ or click Browse... to locate and select it.
Click OK.
(This path is usually added to your Trusted Locations automatically when you install Microsoft Access/Office)