For Windows, see Clear Teams cache on Windows.
Old Teams
- Shut down the Teams app
- Press Command-Q to quit, or
- Right-click the Teams icon and choose Quit
- Open the default Terminal
- Open the Finder app
- Navigate to /Applications/Utilities
- Double-click Terminal
- Paste the following command and hit Enter:
rm -r ~/Library/Application\ Support/Microsoft/TeamsNew Teams
- Shut down the Teams app
- Press Command-Q to quit, or
- Right-click the Teams icon and choose Quit
- Open the default Terminal
- Open the Finder app
- Navigate to /Applications/Utilities
- Double-click Terminal
- Paste the following commands one at a time, hitting Enter after each line:
rm -rf ~/Library/Group Containers/UBF8T346G9.com.microsoft.teams
rm -rf ~/Library/Containers/com.microsoft.teams2Frequently Asked Questions
rm is the “remove” command in Unix-based systems such as macOS. It deletes files or directories. The -rf means recursive and force. It tells rm to delete the directory and all subdirectories recursively, and to suppress confirmation problems to force the deletion.
macOS uses App Sandbox for security. Apps store their data in isolated containers. A group container allows multiple apps from the same developer (in this case Microsoft) to share data securely.
This is Microsoft’s Team identifier in Apple’s ecosystem.

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