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Webcam Not Working on Zoom? Fix the Black Screen

Last reviewed · fixmic team

Zoom shows you connected, but your video is a black rectangle — or it says 'camera is being used by another application'. The webcam itself is almost always fine; Zoom just can't render its feed. Four things cause nearly every case: the wrong camera selected in Zoom, a missing OS-level permission, another app holding the camera, or an advanced render setting that paints black on certain GPUs. Here's the order that fixes it. Steps refer to the current Zoom Workplace client.

Pick the right camera first

In Zoom: Settings (gear icon) → Video. Look at the preview. If it's black, open the 'Camera' dropdown and switch to a different entry — laptops often default to a virtual or disconnected camera. The moment the preview shows you, you're done. This alone fixes most Zoom black-screen reports.

1. Select the correct camera in Zoom's Video settings

Zoom remembers a camera that may no longer be the one you want — a virtual camera from OBS, a disconnected external webcam, or a manufacturer's effects camera. The preview tells you instantly.

  1. Open Settings → Video

    Click your profile picture → Settings (or the gear icon on the home screen), then Video in the left sidebar. A live self-preview sits at the top.

  2. Switch the Camera dropdown until the preview shows you

    Under the preview, the 'Camera' dropdown lists every camera Zoom can see. Cycle through them — if one entry is black and another shows your face, pick the one that works.

  3. In a meeting: the arrow next to Start/Stop Video

    Mid-call you don't need full settings. Click the small ^ arrow beside the 'Start Video' button on the toolbar and choose the right camera from the 'Select a Camera' list.

2. Grant Zoom permission to the camera

If Zoom never gets camera permission from the operating system, the preview stays black no matter which camera you pick. macOS is the most common offender — and it only applies the change after you fully relaunch Zoom.

  1. macOS: System Settings → Privacy & Security → Camera

    Toggle zoom.us ON in the list. Then quit Zoom completely (Cmd + Q, not just the window) and reopen it — macOS only grants the camera on relaunch.

  2. Windows: Settings → Privacy & security → Camera

    Turn on 'Camera access', 'Let apps access your camera', and — for the Zoom desktop client — 'Let desktop apps access your camera' at the bottom. The Zoom desktop app counts as a desktop app, not a Store app.

  3. Zoom in the browser? Check the site permission

    If you join from app.zoom.us in a browser, the camera grant lives in the browser, not the OS. Click the camera/permission icon in the address bar and set Camera to Allow, then reload.

3. Free a camera another app is holding

Most webcams can only feed one app at a time. If Teams, the Camera app, OBS, or a browser tab already opened the camera, Zoom gets a black frame or the 'camera is being used by another application' error.

  1. Quit every other video app

    Close Teams, Google Meet tabs, the Camera app, OBS, and FaceTime. Check the system tray / menu bar for apps still running in the background, then restart Zoom.

  2. Check the physical privacy shutter

    Many laptops and external webcams have a sliding cover or a camera-off keyboard key (often F8/F10 with a camera icon). A covered lens looks exactly like a software black screen.

  3. Reseat an external webcam

    Quit Zoom, unplug the webcam, plug it into a different USB port (ideally a blue USB 3.0 port directly on the computer, not a hub), then reopen Zoom and re-select it in Video settings.

4. Camera detected but still black? Change the Advanced video method

If Zoom lists your camera and the light comes on but the feed stays black, the cause is usually how Zoom renders or captures video on your specific GPU/driver. Two Advanced settings fix this for most people.

  1. Settings → Video → Advanced

    Scroll to the bottom of the Video settings and click 'Advanced'. (You can also type 'advanced video' in the in-app search.)

  2. Change the video capturing method

    Switch 'Optimize video quality with de-noise' off, then set the capturing method from Auto to Media Foundation (Windows). This single change clears the most common 'detected-but-black' cases.

  3. Try a different Video Rendering Method

    Still black? Cycle the 'Video Rendering Method' between Auto, Direct3D11, and Direct3D9. Some GPU drivers only render correctly on one of them. Restart Zoom after each change.

5. Update and restart Zoom — and check antivirus

An outdated client and third-party webcam protection are the two remaining usual suspects once permissions and selection are correct.

  1. Update Zoom, then fully restart it

    Profile picture → 'Check for Updates'. Install anything pending, then quit Zoom completely and reopen. Many black-screen bugs are fixed in point releases.

  2. Whitelist Zoom in your antivirus webcam protection

    Security suites with webcam protection — Kaspersky ('Webcam Protection'), Norton ('SafeCam'), Bitdefender, Avast/AVG ('Webcam Shield') — can block Zoom specifically while every other app works. Add Zoom to the allowed list, or toggle the feature off to test.

Zoom camera still black?

If the right camera is selected, permission is granted, no other app is using it, and the advanced methods didn't help:

  • Open your computer's built-in Camera app (or Photo Booth on Mac). If it's black there too, the problem is the OS or hardware, not Zoom — see the Windows camera guide.
  • Reboot once. A camera held by a crashed background process is released on restart.
  • Reinstall the Zoom client — a corrupted install can break video while audio keeps working.
  • On a managed/work laptop, IT policy or a VDI/virtual-desktop setup can block direct camera access in Zoom; ask IT whether camera passthrough is enabled.
  • Update your webcam and GPU drivers — an outdated graphics driver is a frequent cause of a detected-but-black feed.

Related guides

Confirm your camera works

Run the live camera test before your next Zoom call. It shows your webcam feed in the browser in one click — so you know the camera itself is fine and the issue is just Zoom's settings.

Test your camera