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1. Open the Apps and Features settings.
2. Select Avid Media Composer and choose uninstall.
3. Another way is through the Programs and Features from the Control Panel.
4. Right-click on Avid Media Composer and choose uninstall.
5. Follow the on-screen instructions.
6. Uninstallation complete.
Knowledgebase article: https://avid.secure.force.com/pkb/articles/en_US/how_to/Uninstall-Media-Composer-on-Windows
Media Composer Licensing, Installation, and User Help
https://avid.secure.force.com/pkb/articles/en_US/How_To/Media-Composer-Licensing-Installation-and-User-Help
How To Subscribe to Avid Knowledge Base
https://avid.secure.force.com/pkb/articles/en_US/How_To/How-to-subscribe-to-an-Avid-Knowledge-Base-article