Quick answer: Teams cache can usually be cleared after quitting Teams completely, but expect the app to rebuild cache and ask you to sign in if needed.
Why this uses C drive space
Teams stores cache, logs, media thumbnails, and web app data under the user profile. This can grow over time on work PCs.
Safe cleanup steps
- Quit Teams completely from the system tray.
- Make sure meetings and uploads are not active.
- Clear Teams cache through app reset or documented cache folders.
- Restart Teams and sign in if prompted.
- Check disk space after cache is rebuilt.
What to avoid
Do not delete broad AppData folders. Only clear Teams-specific cache locations or use app reset options.
How DiskTidy helps
DiskTidy can help you review temporary files, browser cache, cleanup candidates, and large files before deleting anything. It is designed for local, review-first cleanup instead of blind one-click deletion.