Live does not launch because of a missing dll (Win)

  • Live Versions: 9.2 and higher
  • Operating System: Win

As of Live 9.2, a number of Windows users are running into the following error upon program launch.

missing dll.png

Alternatively, users may see that "MFCU120.dll" or "MFC120U.dll" is reported as missing.  Most missing .dll messages found after installing Live 9.2 on Windows can be resolved by following the instructions below.

These .dll files are delivered with the latest version of the Microsoft Visual C++ distribution, which is included in the Ableton Live installation folder.

Please run the installer from this location:

Live 9 32-bit

C:\ProgramData\Ableton\Live 9 Suite\Redist \vcredist_x86.exe

Live 9 64-bit

C:\ProgramData\Ableton\Live 9 Suite\Redist \vcredist_x64.exe

Please note that the ProgramData folder is hidden by default, but you can make it visible.

While Visual C++ is installed together with Live when performing a manual installation, it cannot be installed via automatic updates, thus it is necessary to perform these steps manually.