Webcam Not Detected in Zoom/Teams
Zoom or Teams says no camera found even though the webcam works elsewhere. Check privacy settings, the USB video driver, and app permissions in order.
You join a call, and Zoom or Teams insists no camera exists, yet the same webcam works perfectly in another app moments later. That contradiction is the clue: the hardware is fine, so something is standing between the app and the camera. Usually it's a privacy switch blocking access, a per-app permission that's turned off, a driver that half-loaded, or a USB port that can't feed enough data. Tackling these in a fixed order saves guesswork. This walkthrough isolates the real blocker step by step so your camera shows up where you need it.
- 1
Confirm the camera works in the Camera app
Before touching drivers, prove the webcam itself is healthy. Press the Windows key, type Camera, and open the built-in Camera app. If you see a live picture, the hardware and its driver are working, and your problem is a permission or app-level block, which the next steps handle. If the Camera app also shows nothing or an error, the issue is deeper in the driver or the USB connection, so you'll focus on those steps instead. This single test splits the problem cleanly in two and stops you from reinstalling drivers you didn't need to touch.
- 2
Turn on camera access in privacy settings
Open Settings, go to Privacy & security, then Camera. Make sure Camera access is switched on at the top, and that Let apps access your camera is enabled below it. Windows added a master switch here that, when off, hides the camera from every app at once, which perfectly explains a webcam that works in one place but vanishes in another after an update reset it. Toggle these on, then scroll to check the list of apps allowed to use the camera. This global gate has to be open before any individual app, including Zoom or Teams, can find the device.
- 3
Enable per-app camera permissions
Still on the Camera privacy page, scroll to the list of installed apps and confirm the toggle is on for the app you're using. Note that Zoom and Teams installed from the Microsoft Store appear directly in this list, while versions installed as classic desktop programs fall under a separate Let desktop apps access your camera switch further down, so check both. If your app is a desktop install, that lower toggle must be on or the app is blocked no matter what else you set. Turn on the right one, then fully close and reopen the app so it rescans for the camera.
- 4
Set the right camera inside the app
Sometimes Windows is fine and the app is simply pointed at the wrong device. Open the app's settings and find its video or camera section. In Zoom that's the Video settings; in Teams it's under Devices. Use the camera dropdown to pick your actual webcam by name rather than a virtual or built-in option that may be selected by default. If the dropdown is empty, the app truly can't see any camera and the block is at the Windows level, so return to the privacy steps. If your camera is listed, select it and confirm the preview shows your video.
- 5
Check the driver in Device Manager
Right-click the Start button and open Device Manager. Look under Cameras, and also under Imaging devices, for your webcam. A standard USB webcam appears as a USB Video Device using the built-in UVC driver. A yellow warning triangle or a Code 10 error means the driver failed to load, which would explain the camera missing everywhere. Right-click the device and choose Properties to read its status. If it's healthy, your issue was permissions, not drivers. If it shows an error, note the message, because the next step reinstalls the driver to clear it.
- 6
Reinstall the webcam driver
In Device Manager, right-click the webcam and choose Uninstall device. Unplug an external webcam, wait a few seconds, then plug it back in, or restart for a built-in camera. Windows re-detects the device and reinstalls the standard UVC driver automatically, which resolves most half-loaded driver states. If the camera stays unrecognized, get the correct driver from your laptop or webcam maker's official support page for your exact model; avoid third-party driver sites. Creating a restore point before uninstalling is a sensible safety net, so you can return to a known state if the reinstall doesn't take.
- 7
Rule out USB port and hub problems
External webcams need steady power and bandwidth. If the camera flickers in and out or appears only sometimes, plug it directly into a port on the PC rather than through a hub, monitor, or dock, which can starve it. Try a different port, ideally a USB 3 one marked in blue, since some cameras need the extra bandwidth. If it now works, the earlier port or hub was the fault. To catch a recurring dropout, open Event Viewer, expand Windows Logs, and check the System log for USB or camera errors around the time the device disappeared.