Topic
The Microsoft Access Database Engine Redistributable is specifically used for backwards compatibility for supporting .mdb Access files as well as .accdb Access files.
M365 Access will not work with RPA Bot. Additionally, RPA Central does not use the Microsoft Access Database Engine Redistributable, only the Bot needs it.
Instructions
If you are running Nintex Foxtrot version 15.1.2 or below, you will need the Microsoft Access Database Engine Redistributable 2010.
If you are running any newer version of Foxtrot or RPA LE, you will need the Microsoft Access Database Engine Redistributable 2016.
Both of the above Microsoft Access Database Engine Redistributable versions need to be 32 bit as Foxtrot and RPA LE are both 32 bit programs.
If you have any further questions, please send an email to support@nintex.com and add RPA LE int he subject along with MS Access Database Engine.