Summary

This guide helps you troubleshoot and resolve: Teams not loading/crashing. Follow the steps below to fix the issue.

Common Causes

Overview

If Microsoft Teams won’t start, freezes, or crashes repeatedly, try the troubleshooting steps below to get it back up and running.

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Quick Solutions

1. Restart Your Computer

This often resolves temporary issues.

1. Save any open work.
2. Click Start → Power → Restart.
3. After the restart, try opening Teams again.

2. Check Teams Service Status

Visit status.office.com to see if Microsoft has reported any service issues.

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Fix Teams Not Loading

Clear Teams Cache (Windows)

1. Close Teams completely (right‑click the Teams icon in the taskbar and select Quit).
2. Press Win + R to open the Run dialog.
3. Enter %appdata%\Microsoft\Teams and press .
4. Delete the following folders:
   • Application Cache
   • Cache
   • blob_storage
   • databases
   • GPUCache
   • tmp
5. Sign out of Windows (or restart) to ensure the cache is cleared.
6. Reopen Teams and sign in again.

Reinstall Teams (Windows)

1. Open Settings → Apps → Installed apps.
2. Select Microsoft Teams and click Uninstall.
3. Download the latest installer from teams.microsoft.com.
4. Run the installer and sign in.

Clear Teams Cache (macOS)

1. Quit Microsoft Teams.
2. Open Finder, press Shift + Command + G, and enter ~/Library/Application Support/Microsoft/Teams.
3. Delete the contents of the folder (or the folders listed above for Windows).
4. Restart your Mac and launch Teams.

Reinstall Teams (macOS)

1. Open Finder → Applications.
2. Drag Microsoft Teams to the Trash.
3. Download the latest macOS installer from teams.microsoft.com.
4. Open the downloaded .pkg file and follow the prompts.

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Fix Teams Crashing

Update Teams

1. Click your profile picture in Teams.
2. Select Check for updates. Teams will download and install any available updates.
3. Restart Teams.

Run Teams with GPU Acceleration Disabled (Safe Mode)

1. Press Win + R to open Run.
2. Enter teams.exe --disable-gpu (or the full path, e.g., "%LocalAppData%\Microsoft\Teams\current\teams.exe" --disable-gpu).
3. Press .
4. If Teams starts without crashing, a GPU‑related issue is likely. Consider updating your graphics drivers.

Disable Hardware Acceleration

1. Click your profile picture → Settings.
2. Go to the General tab.
3. Uncheck Turn on GPU hardware acceleration.
4. Restart Teams.

Check for Windows Updates

Out‑of‑date Windows components can cause Teams to fail. Follow How to update Windows to ensure your system is current.

Verify .NET Framework and Visual C++ Redistributables

Teams requires the latest .NET runtime and Visual C++ libraries. Install them from the Microsoft website if they are missing.

Network and Firewall Checks

1. Ensure that ports 80, 443, and 3478‑3480 are not blocked by your firewall or proxy.
2. Test connectivity to teams.microsoft.com and login.microsoftonline.com.
3. If you use a corporate VPN, try disconnecting and reconnecting.

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Fix Specific Issues

Blank Screen After Sign‑In

1. Clear your browser cache if you are using Teams on the web – see How to clear browser cache/cookies.
2. Try a different browser; Microsoft Edge is recommended.
3. Ensure hardware acceleration is disabled as described above.

Audio/Video Not Working

For troubleshooting camera or microphone problems, refer to Meeting camera/microphone not working.

Cannot Sign In

1. Verify your password at office.com.
2. Check your internet connection.
3. Confirm that multi‑factor authentication is functioning.
4. If the issue persists, clear stored credentials as described earlier.

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Further Assistance

If the problem remains unresolved, please Open a Ticket and include:

• Your device type (Windows or Mac)
• Teams version (click profile → About → Version)
• Any error messages displayed
• Steps you have already tried

Still Having Issues?