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Camera not working in Microsoft Teams

New Teams and Teams in the browser, Windows and Mac.

First, test it.
The webcam test shows in seconds whether the device works at all — that decides which steps below apply.
Open the webcam test

Three places can block a microphone or camera, and all three must say yes: the operating system (privacy settings), the browser or app (site permission or device picker) and the hardware (mute switch, shutter, cable). Work through them in that order.

Test the camera itself with the webcam test. Picture here? Then only Teams needs fixing.

  1. Device settings in Teams. In a meeting: More (···) › Settings › Device settings › Camera. The preview should show you. Outside meetings: Settings and more (···) › Settings › Devices.
  2. Turn video on. Ctrl+Shift+O toggles the camera.
  3. Free the camera. Close Zoom, Meet, Camera app, OBS and any other Teams window (a second meeting window keeps the camera).
  4. Windows privacy. Settings › Privacy & security › Camera › all switches on and Microsoft Teams on in the list.
  5. macOS privacy. System Settings › Privacy & Security › Camera › Microsoft Teams on; toggle off/on after updates.
  6. Shutter, key, antivirus, driver — same as any camera: lens cover open, camera key not pressed, security software not blocking, Device Manager › Cameras driver updated.
  7. Teams reset. Sign out, quit, Settings › General › Clear cache, sign back in. For managed work laptops, your IT policy may block cameras in Teams — ask IT.

Teams in the browser

Allow the camera for teams.microsoft.com — see the browser permission guide.

Did it work?

Run the webcam test again. If the device now registers here, every app that has permission will see it too.

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Questions, answered

Teams says my camera is in use by another application.

Close the other app (often Zoom or a Camera app left open) or restart; only one app can hold most webcams.

Background blur is grey or missing.

Blur and effects need a supported CPU/GPU; on older or managed machines Teams hides them. The camera still works.