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Overview
Please follow the steps below to resolve issues with Teams.
Issues
Clicking on a Teams link opens the old app instead of the new app.
Troubleshooting
1. Unistall and install the app
2. Clear Cache
Clear Teams cache in Windows
If Teams is still running, right-click the Teams icon in the taskbar, and then select Quit.
Open the Run dialog box by pressing the Windows logo key +R.
In the Run dialog box, enter %appdata%\Microsoft\Teams, and then select OK.
Delete all files and folders in the %appdata%\Microsoft\Teams directory.
Restart Teams.
Clear Teams cache in macOS
If Teams is still running, right-click the Teams icon in the dock, and then select Quit, or press Command (⌘)-Q.
In the Finder, open the /Applications/Utilities folder, and then double-click Terminal.
Enter the following command, and then press Return:
rm -r ~/Library/Application\ Support/Microsoft/Teams
Restart Teams.