Webcam Doesn't Work on Windows: How to Fix It
The privacy permission that's the most common cause, before suspecting drivers or hardware.
You're about to start a video call and the camera doesn't show up, or shows a black screen. Before suspecting drivers or hardware, by far the most common cause is a simple privacy permission turned off.
1. Privacy permissions (the most common cause)
- Settings → Privacy & security → "Camera".
- Confirm "Camera access" is turned on.
- Further down, confirm "Let apps access your camera" is also turned on.
- If you use a program that doesn't come from the Microsoft Store (like Zoom or Skype installed directly), also confirm "Let desktop apps access your camera".
Tip: it's easy to assume the problem is hardware or drivers when it's actually just this permission turned off — always check this first, it takes less than a minute.
2. Is another application already using it?
Only one program can use the camera at a time. If you have several video call apps open (even in the background), they might be "holding onto" the camera. Task Manager → close any other app that might be using it → try again.
3. The automatic troubleshooter
Settings → System → Troubleshoot → Other troubleshooters → "Camera" → Run.
4. Checking Device Manager
Look for your camera under the "Cameras" or "Imaging devices" categories. If it doesn't show up: "Action" menu → "Scan for hardware changes". If it shows up with a warning icon: right-click → "Enable device".
5. Third-party antivirus
Some security programs block camera access by default, as a privacy measure. Check your antivirus's settings if you use one other than Windows' built-in one.
If it's a built-in camera and it still doesn't work
Last option before suspecting a physical fault: switch to Windows' generic UVC driver. Device Manager → your camera → "Update driver" → "Browse my computer for drivers" → "Let me pick from a list" → "USB Video Device".
Note: the generic driver might make manufacturer- specific features (like Windows Hello facial recognition with some cameras) unavailable, even though the camera goes back to working normally for video calls.
Frequently asked questions
Why does the camera work in one app but not another?
It usually means the problem is specific to that application (its own permissions, internal settings), not Windows in general — check the camera settings inside that specific app.
Can another application be blocking my camera without me knowing?
Yes, only one program can use the camera at a time. If you have several video call apps open in the background, one might be holding onto access without you noticing.
Is it safe to switch to the generic UVC driver?
Yes, it's a driver officially included in Windows. The only trade-off is that some manufacturer-specific features of your camera may stop working, though the basic video function will keep working normally.