Webcam not working? A step-by-step fix for Windows, Mac and your browser

1. Confirm the symptom with a browser test

Open the CamMicGo webcam test and start it. What you see tells you where to look:

• The browser never asks for permission, or reports that access is blocked: go to step 2.
• Access is granted but the picture stays black: go to steps 3 and 4.
• An error says the camera is already in use: go to step 4.
• The picture works but in the wrong camera (for example a virtual camera): go to step 5.

2. Allow the camera in your browser

Browsers ask for permission per website. If you clicked “Block” once, the browser remembers it.

• Chrome and Edge: click the site controls icon to the left of the address bar, set Camera to Allow, then reload the page. You can also review sites under Settings › Privacy and security › Site settings › Camera.
• Firefox: click the permissions icon in the address bar and remove the blocked camera permission, then reload.
• Safari: Safari › Settings for this website › Camera › Allow.

3. Check the operating system privacy settings

Even with the browser allowed, the system can still block the camera.

• Windows 11: Settings › Privacy & security › Camera. Turn on camera access, “Let apps access your camera” and “Let desktop apps access your camera”, which covers browsers.
• macOS: System Settings › Privacy & Security › Camera, then enable your browser in the list. Quit and reopen the browser after the change.
• Some laptops have a physical shutter or a keyboard key (often with a camera icon) that disables the camera. Check it before going further.

4. Close apps that may be using the camera

On many systems only one application can use a webcam at a time. Fully quit Zoom, Microsoft Teams, Skype, Discord, OBS and camera utilities — closing the window is not always enough, check the system tray or menu bar. Then reload the test.

5. Select the right camera

If you have several cameras (built-in, USB, virtual cameras created by OBS or a phone app), the browser may pick the wrong one. In the CamMicGo webcam test, choose your camera in the device list. In Chrome you can also set the default camera under Settings › Privacy and security › Site settings › Camera.

6. Hardware and driver checks

• USB webcam: unplug it, plug it into another port directly on the computer (not a hub), and wait a few seconds.
• Windows: open Device Manager, look under Cameras or Imaging devices, and update or reinstall the driver if the device shows a warning.
• Restart the computer: it releases a camera that stays locked by a crashed process.
• Test on another computer or phone to rule out a faulty webcam.

When everything works

Once the picture appears, keep the test open for a minute and watch the real FPS and lighting readings. A camera that works but delivers a dark, grainy image usually needs more light rather than a new driver.