High Quality Download Microsoft.ace.oledb.12.0 Provider For Both 64-bit -

The direct answer is that Microsoft has actively retired the standalone download links for the older Microsoft.ACE.OLEDB.12.0 (Access 2010) driver. To resolve connection errors, you should instead download the highly compatible and currently supported Microsoft Access Database Engine 2016 Redistributable.  🚀 How to Download & Install 

To resolve the common error "The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine", follow these steps: 

Visit the portal: Go to the Microsoft Access Database Engine 2016 Download Page. Select your files: Choose AccessDatabaseEngine.exe for the 32-bit environment.

Choose AccessDatabaseEngine_X64.exe for the 64-bit environment.

Run the installation: Double-click the file and follow the setup prompts.  ⚠️ The "Both 64-bit and 32-bit" Catch  download microsoft.ace.oledb.12.0 provider for both 64-bit

To download and install the Microsoft.ACE.OLEDB.12.0 provider for 64-bit systems, you must install the Microsoft Access Database Engine Redistributable

. While the specific 2010 version associated with the "12.0" identifier is legacy, newer versions remain compatible and are recommended for modern environments. Data Savvy Recommended Downloads

Microsoft Access Database Engine 2016 Redistributable (Recommended) Official Microsoft Download Center provides the 2016 version, which supports the Microsoft.ACE.OLEDB.12.0 connection string. To get the 64-bit version, select AccessDatabaseEngine_X64.exe during the download process. Microsoft 365 Access Runtime For environments using Microsoft 365, you can download the Access Runtime

, which includes the latest ACE drivers for both 32-bit and 64-bit architectures. Installation Notes Version Compatibility The direct answer is that Microsoft has actively

: The 2016 driver (ACE 16.0) is downward compatible and will work with connection strings specifying Microsoft.ACE.OLEDB.12.0 Bit-Level Conflict

: 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

: If you encounter errors about existing Office installations, you can force the installation via the command prompt by adding the switch to the file path. C:\Downloads\AccessDatabaseEngine_X64.exe /passive ManageEngine Verification

After installation, the provider should appear in your system's ODBC Data Source Administrator (64-bit) or be accessible via code using: Error 1: "The provider is not registered" after

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=yourfile.accdb; specific connection string

for a different file type, such as Excel or an older .mdb database? Microsoft Access Database Engine 2016 Redistributable

Error 1: "The provider is not registered" after installation

Cause: Your application’s architecture does not match the installed provider. Fix:

• If your app is 32-bit, install the 32-bit ACE provider.
• If your app is 64-bit, install the 64-bit ACE provider.
• (Check your app): In SQL Server, check if SSIS runs in 64-bit mode (Project Properties -> Debugging -> Run64BitRuntime = False to force 32-bit).

Important Pre-requisites

1. Uninstall any previous ACE versions before trying side-by-side.
2. Do not run this on a machine with 32-bit Microsoft Office installed. The 32-bit Office DLLs will conflict with the 32-bit ACE engine. You have three unhappy choices:
   • Uninstall 32-bit Office and install 64-bit Office.
   • Uninstall Office and only use ACE drivers.
   • Use a virtual machine or container to separate the environments.

Alternative Command Line Sequence (For advanced users)

If /passive fails, try this on a clean machine (no Office):

# Install 64-bit first
msiexec /i "AccessDatabaseEngine_x64.exe" /quiet
Error: "Cannot install 64-bit version because 32-bit Office is present."

Workaround 1: Uninstall 32-bit Office → Install 64-bit ACE → Reinstall 32-bit Office (not recommended).
Workaround 2: Change your application to compile as 32-bit (e.g., in Visual Studio: Build → Configuration Manager → Platform = x86).
Workaround 3: Use Microsoft.ACE.OLEDB.16.0 instead (same installer, newer ProgID).