When some feature in MS Teams doesn’t work right and you have exhausted most troubleshooting steps, it’s possible that the MS Teams Cache has become corrupted. On a Windows PC, you can delete the MS Teams cache and when Teams starts again, a fresh copy of the cache will be created.
Follow the instructions below to delete and recreate a fresh cache:
Old Teams
1. Exit of the Microsoft Teams Desktop App.
2. Right-click on the Teams icon in your system tray and click Quit.
3. Open File Explorer and in the address bar copy and paste the following location: %appdata%\Microsoft\Teams.
4. Delete all files and folders in that Directory.
5. Open MS Teams and you will see a fresh cache created in the %appdata%\Microsoft\Teams folder.
New Teams
1. Exit of the Microsoft Teams Desktop App.
2. Right-click on the Teams icon in your system tray and click Quit.
3. Open File Explorer and in the address bar copy and paste the following location:
C:\Users\%username%\AppData\Local\Packages\MSTeams_8wekyb3d8bbwe.
4. Delete all files and folders in that Directory.
5. Open MS Teams and you will see a fresh cache created in the
“C:\Users\%username%\AppData\Local\Packages\MSTeams_8wekyb3d8bbwe” folder.