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Camera & Webcam

Camera Not Working in Teams – Black Screen Fix

AG
Againly Tech Team
April 16, 2026

Camera Not Working in Teams – Black Screen Fix

If you join a Teams meeting and your video is a black square, you're usually facing a "Media Foundation" deadlock. Againly fixes this automatically by forcing Teams to release the camera hardware and re-establishing the video handshake in seconds.

Why this happens

  • Resource Lock: Another app (like Zoom or even a hidden Chrome tab) is holding the camera stream.
  • Teams V2 Bug: The "New" Teams often fails to initialize the webcam if you have a virtual background enabled.
  • Privacy Lock: Windows 11 may have revoked Teams' permission to use the webcam during a background update.

Fix it manually

  1. Toggle Video ON/OFF: In the meeting, click the camera icon off and then back on.
  2. Select Correct Camera: In Teams Settings > Devices, ensure your physical webcam is selected, not "Teams Virtual Camera."
  3. Reset Teams Cache: Fully close Teams, go to %appdata%\Microsoft\Teams, and delete the cache contents.

Fix it automatically with Againly

Againly clears the "Hardware Mutex" that prevents Teams from accessing your webcam, restoring your video feed instantly.

Instant Resolution

Fix this problem in 46 seconds

Stop wrestling with registry keys and driver settings. Let Againly automate the fix for you right now.

Download Againly Free →

Works on Windows 10 & 11 • No credit card required

Camera Not Working in Teams – Black Screen Fix | Againly