Uninstall Microsoft Teams Completely on Windows 10 and Android

This guide shows you how to remove Microsoft Teams completely from both Windows 10 and Android devices. You’ll learn the exact steps to delete the app, clear leftover files, and remove registry entries on Windows, plus how to fully uninstall on Android to free up space and stop background activity.

What You’ll Need

• Administrator access on your Windows 10 PC
• Your Android device unlocked
• Optional: a third-party uninstaller tool (like Revo Uninstaller) for deeper cleaning on Windows

Step-by-Step: Windows 10

1. Close Teams completely: Right-click the Teams icon in the system tray (bottom-right) and select Quit. Also, check Task Manager (Ctrl+Shift+Esc) and end any Teams processes if they’re still running.
2. Uninstall via Settings: Go to Settings > Apps > Apps & features. Search for “Teams”. You’ll see two entries: “Microsoft Teams” (the classic version) and “Microsoft Teams (work or school)” (the new version). Uninstall both, one at a time, by clicking on them and selecting Uninstall.
3. Uninstall via Control Panel (if needed): If the app doesn’t appear in Settings, open Control Panel > Programs > Programs and Features. Find Teams, right-click, and select Uninstall.
4. Delete leftover folders: After uninstalling, open File Explorer and navigate to %AppData%\Microsoft\Teams and delete the entire Teams folder. Also check %LocalAppData%\Microsoft\Teams and delete that too. These folders contain cached files and user data.
5. Clear the Teams machine-wide installer folder: Go to C:\Program Files\Teams (or C:\Program Files (x86)\Teams) and delete the folder if it remains.
6. Remove registry entries (advanced): Press Win+R, type regedit, and press Enter. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Office\Teams and delete the Teams key. Also check HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Teams and delete it. Be careful when editing the registry—make a backup first.
7. Check for Teams in Startup: Open Task Manager, go to the Startup tab, and disable any Teams entry that might still be listed.
8. Restart your PC: Reboot to finalize the cleanup.

Step-by-Step: Android

1. Uninstall from the app drawer: Long-press the Teams app icon and select Uninstall (or drag it to the “Uninstall” option at the top of the screen). Confirm when prompted.
2. If uninstall fails (it’s a system app): Some Android devices (especially Samsung) have Teams pre-installed. If you can’t uninstall, go to Settings > Apps, find Teams, tap on it, and select Disable. This stops it from running and removes it from the app drawer.
3. Clear data (even after uninstall): Go to Settings > Apps, tap Teams (if it still shows), then Storage > Clear Data and Clear Cache before uninstalling or disabling.
4. Check for work profiles: If your phone has a work profile, Teams may be installed there. Switch to the work profile (usually by tapping the briefcase icon) and uninstall it from that profile as well.
5. Restart your phone: Reboot to ensure all background processes are gone.

Common Mistakes

• Not quitting Teams before uninstalling: If Teams is still running, the uninstaller may fail or leave files behind.
• Forgetting the second Teams app: Windows 10 often has both the classic and new Teams installed; you must remove both.
• Skipping leftover folders: The AppData folders can remain even after uninstall, causing Teams to reappear or auto-install later.
• Editing the registry without backup: A wrong registry edit can break other apps.
• On Android, not clearing data first: If you uninstall without clearing data, some files may remain in the internal storage.

Tips

• Use a third-party uninstaller: Tools like Revo Uninstaller can scan for leftover files and registry entries after the standard uninstall.
• Check for Teams in Office 365: If you have Office 365, Teams might be set to install automatically. In the Office deployment tool, you can exclude Teams.
• On Android, if Teams is a system app: Disabling is the best you can do without rooting. It stops updates and background activity.
• After uninstalling, search for “Teams” in File Explorer: This helps you find any stray folders you might have missed.

Troubleshooting

• Teams won’t uninstall from Settings: Try using the Control Panel method, or run the uninstaller from the installation folder (e.g., C:\Program Files\Teams\Update.exe --uninstall).
• Teams keeps re-installing after reboot: This is often caused by Office 365 or Windows Update. Check your Office installation settings and disable the Teams auto-install policy.
• Registry key won’t delete: Make sure you have administrator rights. Right-click the key, select Permissions, and give your user account full control.
• On Android, the uninstall button is greyed out: This means it’s a system app. Use the Disable option instead.
• Teams still shows in the Start menu: Right-click the shortcut, select Open file location, and delete the shortcut from the folder that opens.
• If you see “We’re sorry, but Teams is still running”: Open Task Manager, end all Teams processes, then try uninstalling again.

Frequently Asked Questions

Will uninstalling Teams delete my chat history?

No, your chat history is stored in the cloud. When you sign back in on another device, your messages will be there.

Can I reinstall Teams later?

Yes, you can download it again from the Microsoft website or your app store. The uninstall process is reversible.

Why does Teams keep coming back on Windows 10?

It’s likely being auto-installed by Office 365 or Windows Update. You need to disable the auto-install policy in your Office deployment settings.

Is it safe to delete the registry keys?

Yes, but only the specific Teams keys. Always back up the registry before making changes. Deleting unrelated keys can cause system issues.

On Android, what’s the difference between uninstalling and disabling?

Uninstalling removes the app entirely. Disabling stops it from running but keeps it on the device. Disabling is the only option for system apps.

Will uninstalling Teams affect other Microsoft apps?

No, Teams is a standalone app. Removing it won’t affect Outlook, Word, or other Office apps.

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