To download and install the provider for 64-bit systems, you must download the Microsoft Access Database Engine 2010 Redistributable . While newer versions like 2016 exist, the "12.0" provider specifically refers to the 2010 engine components.
using System; using System.Data; using System.Data.OleDb; download microsoft.ace.oledb.12.0 provider for both 64-bit
AccessDatabaseEngine.exe /quiet /norestart Microsoft
To deploy across many machines silently: Install as Administrator
: If you encounter errors after installing both, you may need to delete the registry value located at
Download 2010 Redistributable.
/passive workaround — but prefer separate environments.The complexity arises because Microsoft distributes : one for 32-bit (x86) and one for 64-bit (x64). You cannot run both side-by-side by default.