__link__ Download Microsoft.ace.oledb.12.0 Provider For Both 64-bit Now

Check your registry for the provider:

Microsoft does not support side-by-side installation of 32-bit and 64-bit Office components by default.

If you have ever tried to read an Excel spreadsheet (.xlsx) or an Access database (.accdb) using a script or application—particularly in a —you have likely encountered the infamous error:

Once installed, you need the correct connection string syntax. download microsoft.ace.oledb.12.0 provider for both 64-bit

Look in Registry:

This error happens because of a between your application (32-bit or 64-bit) and the installed version of the database engine. This comprehensive guide will show you how to download, install, and configure the Microsoft.ACE.OLEDB.12.0 provider for both 32-bit and 64-bit architectures on the same machine. Understanding the Bitness Conflict

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\myFolder\myExcelFile.xlsx;Extended Properties="Excel 12.0 Xml;HDR=YES;"; Use code with caution. Check your registry for the provider: Microsoft does

Download Microsoft.ACE.OLEDB.12.0 Provider for 64-Bit & 32-Bit (Fix "Not Registered" Error)

To run both drivers simultaneously—which is critical if you are debugging a 32-bit app in Visual Studio but executing queries on a 64-bit SQL Server instance—follow this precise order: Step 1: Install the Primary Architecture Normally Download link for Microsoft.ACE.OLEDB.12.0

| Use Case | Required Provider | |----------|------------------| | 64-bit SQL Server Import/Export Wizard | 64-bit ACE.12.0 | | 32-bit Excel VBA connecting to Access | 32-bit ACE.12.0 | | 64-bit SSIS running on server with 32-bit Excel source | Both (install 64-bit first, then 32-bit with /quiet ) | | 32-bit IIS application pool reading XLSX files | 32-bit ACE.12.0 | This comprehensive guide will show you how to

: If you encounter errors after installing both, you may need to delete the registry value located at

| Item | Details | |------|---------| | | Microsoft Access Database Engine 2016 Redistributable (x64) or Microsoft 365 Access Runtime (x64) | | Connection string provider name | Microsoft.ACE.OLEDB.12.0 (use this name even if newer runtime is installed) | | 64-bit installer filename | accessdatabaseengine_X64.exe | | 32-bit installer filename | accessdatabaseengine.exe | | Bitness rule | ACE provider architecture must match your calling application’s architecture | | Installing both architectures | Install one normally, then install the other with /quiet flag | | Support status | Access Database Engine 2016 support ended Oct 14, 2025; Microsoft 365 Access Runtime is the replacement |

AccessDatabaseEngine.exe /quiet /norestart

Press . The installation will run quietly in the background without showing an error message. 🔍 Step 3: Verify the Installation