A webcam that suddenly stops working is usually blocked by privacy settings, already being used by another app, assigned incorrectly inside the video app, or affected by a driver problem. Physical camera failure is possible, but it is not the first place to start.
Does this affect you?
Use these steps if the webcam shows a black screen, your meeting app cannot find it, Windows reports a camera error, or the wrong camera opens when you start a call.
Check Windows camera privacy settings
Camera privacy controls block many webcams, especially after updates or first-time app installs.
- Open Settings > Privacy & security > Camera. On Windows 10, use Settings > Privacy > Camera.
- Make sure Camera access is turned on.
- Turn on app access and confirm the specific app, such as Zoom, Teams, your browser, or another meeting tool, is allowed.
- For browser-based calls, click the lock or camera icon in the address bar and allow camera access for that website.
- Restart the app or reload the browser tab after changing permissions.
Close conflicting apps and select the right camera
Most webcams can be used by only one app at a time.
- Close other apps and browser tabs that might be using the camera, including meeting tools, screen recorders, monitoring apps, and background video utilities.
- Open Task Manager with Ctrl + Shift + Esc, check Processes, and end video apps that are still running after you close them.
- In your meeting app settings, open the video or camera menu and choose the correct webcam. Laptops with built-in and external cameras often default to the wrong one.
- If your laptop has a physical privacy shutter or camera switch, make sure it is open or enabled.
Still not working?
Update or reinstall the camera driver
Open Device Manager, expand Cameras or Imaging devices, right-click the webcam, and choose Update driver. If that does not help, choose Uninstall device and restart so Windows can reinstall a clean basic driver.
Test with the built-in Camera app
Open the Windows Camera app. If the picture works there but not in Zoom, Teams, or a browser, the issue is the app permission or app setting, not the camera hardware.
For external USB webcams
Connect the webcam directly to the computer instead of a hub or dock, and try another USB port. Some hubs lack enough power or bandwidth for video. Also check the webcam manufacturer site for required software, drivers, or firmware.
When it is hardware
If the Camera app also shows a black screen or error after all checks, a built-in laptop camera may have a loose or failed internal ribbon cable. That usually requires a technician because the display bezel and internal cable are not meant for casual disassembly.
Sources
- Microsoft Support – Fix camera problems in Windows (2025)
- Zoom Support – Camera not working during a meeting (2025)
- Logitech Support – Webcam troubleshooting guide (2025)