The provider version (e.g., 12.0 , 16.0 ) in your connection string must match the version you have installed.
| Version | Bit Package | Official Download Link | | :--- | :--- | :--- | | | 64-bit | AccessDatabaseEngine_X64.exe | | 2010 | 32-bit | AccessDatabaseEngine.exe (32-bit) | | 2007 | 64-bit | (Not natively available; only 32‑bit) | | 2007 | 32-bit | AccessDatabaseEngine.exe (32-bit) |
To install the Microsoft ACE OLE DB 12.0 provider:
Navigate to the following path (change 14.0 to 16.0 if you downloaded the 2016 engine):
AccessDatabaseEngine.exe /quiet
Get the version that is from your system (e.g., if you have 32-bit Office, download the 64-bit engine). 2. Run via Command Prompt Press Win + R , type cmd , and press Enter . Navigate to your download folder.
You may need to download the Microsoft ACE OLE DB 12.0 provider if:
Example for Access:
If you encounter issues during installation or while using the Microsoft ACE OLE DB 12.0 provider: download microsoft.ace.oledb.12.0 provider for both 64-bit
Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\MyDatabase.accdb;Persist Security Info=False;
Both installers contain the necessary OLE DB drivers to make the Microsoft.ACE.OLEDB.12.0 provider available on your 64-bit system.
The Microsoft Access Connectivity Engine (ACE) OLEDB provider is a set of components that allows 64-bit applications to connect to, read, and write data to older Office formats (like .xls ) and modern formats ( .xlsx , .accdb ).
Navigate to the folder containing AccessDatabaseEngine_X64.exe . The provider version (e
The "Microsoft.ACE.OLEDB.12.0" provider is part of the . While older 2010 versions are harder to find on official landing pages, the 2016 Redistributable is the current standard and provides the updated OLEDB 16.0 driver, which often maintains compatibility with 12.0 connection strings.
Download and save them to a memorable folder on your computer (e.g., C:\Drivers\ ). Step 2: Install the First Version Normally
: If you encounter errors after installing both, you may need to delete the registry value located at
: By default, you cannot install the 64-bit version if a 32-bit version of Microsoft Office is already installed (and vice versa). Silent/Passive Install Run via Command Prompt Press Win + R