Download Microsoft.ace.oledb.12.0 Provider For Both 64-bit ((hot)) Here

To download the Microsoft ACE OLEDB 12.0 provider (the Access Database Engine) for 64-bit systems, follow the links below.

Download both the 32-bit (AccessDatabaseEngine.exe) and 64-bit (AccessDatabaseEngine_x64.exe) installers from the Microsoft Download Center. download microsoft.ace.oledb.12.0 provider for both 64-bit

Workaround: Forced Passive Installation (Advanced)

If you absolutely need both providers on the same machine (e.g., supporting legacy and modern apps), use the /passive switch: To download the Microsoft ACE OLEDB 12

⚠️ The single .exe file is architecture-aware. Running it normally will block installing the “other” architecture if a version is already present. Running it normally will block installing the “other”

: Run the following command in a 64-bit PowerShell window to see active providers: powershell (New-Object system.

: 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

To bypass the "already installed" error and have both versions: