"An error occurred during the installation of assembly Microsoft.VC90.MFC" (Windows)

  • Live Versions: Live 8.3 - Live 9
  • Operating System: Win

Running the Ableton Live installer (*.msi) leads to the following error:

An error occurred during the installation of assembly 'Microsoft.VC90.MFC [...] Please refer to Help and Support for more information.


After clicking OK in the message box, the installation fails.

This is due to a prior installation of a Windows component that left some faulty Registry entries.

To fix this, you can follow the steps as provided by Microsoft's Answers:


To further troubleshoot installation problems on Windows, please also see this dedicated article.