If you are uninstalling Embed/Comm or Embed/Digital Power Designer, but not the base product:
1. Click on Altair Embed 2021 - Software from the Start menu.
2. Click on Uninstall Altair <product-name> 2021. If you don’t see the Uninstaller for the add-on module you want to uninstall, go to Control Panel > Programs > Uninstall a Program to uninstall it.
3. On subsequent invocations of Embed, you will see a missing DLL message. To stop this message, remove the Comm or Digital Power Designer DLL from the Edit > Preferences > Addons list the next time you start Embed.