gINT uses the 32-bit version of the Office 2010 Access Database engine. gINT Civil Tools uses the 64-bit version. Microsoft does not support both 32-bit and 64-bit versions of the same Office version (2010) on a machine.
The work-around is to install the 64-bit version of the Office 2016 Access Database engine using the “/quiet” switch and the 32-bit version of the Office 2010 Access Database engine using the “/passive” switch.
The following are links to the Access Database Engines you may need.
https://www.microsoft.com/en-us/download/details.aspx?id=54920
https://communities.bentley.com/products/geotechnical1/m/mediagallery/277049
Note: Control Panel lists the Office versions of the Access Database Engine, but not if it is 32 bit or 64 bit. Therefore it is easiest to uninstall the Database engine and install both anew.
The idea is, after the above, there to have different OFFICE versions of the components, 2010 vs 2016 on the PC.