The fastest way to check if your webcam works

Open your operating system's built-in camera app. On Windows 10 and 11, search for "Camera" in the Start menu and click the app. On Mac, open Finder, go to Applications, then Utilities, and double-click Photo Booth. On Linux, open Cheese or Snapshot depending on your distribution. If the app opens and shows your face or the room in front of your computer, your webcam is working.

If the app opens but shows a black screen or "no camera found" message, your webcam is either disconnected, disabled, or has a driver problem. The next sections walk you through each possibility in order.

Key Takeaways

  • The Camera app (Windows), Photo Booth (Mac), or Cheese (Linux) will show when ready whether your webcam is sending video.
  • A black screen usually means the camera is disabled in your system settings or the driver needs updating, not that the hardware is broken.
  • Check Device Manager on Windows or System Report on Mac to see whether your operating system recognizes the camera at all.
  • Restarting your computer fixes many webcam problems because it reloads drivers and clears temporary software conflicts.
  • If your webcam works in the system app but not in Zoom or another program, the problem is that program's permissions, not your hardware.

Check if Windows recognizes your webcam in Device Manager

Right-click the Start button and select Device Manager. Look for "Cameras" in the list. Click the arrow next to it to expand the category. If you see your webcam listed with a green checkmark, Windows recognizes it and the driver is loaded. If you see a yellow exclamation mark or a red X, the driver is either missing or disabled.

If "Cameras" does not appear at all, your webcam may be listed under "Other devices" or "Unknown devices" instead. Look for an entry with a yellow exclamation mark. Right-click it and select "Update driver." Choose "Search automatically for updated driver software." Windows will search online and install the correct driver if it finds one.

If Device Manager shows no camera at all, your webcam may not be plugged in (if it is external) or may be disabled in your BIOS. Restart your computer and enter BIOS setup during startup (usually by pressing Delete, F2, or F12 during the boot screen). Look for an option called "Integrated Camera" or "Internal Camera" and make sure it is set to Enabled. Save and exit.

Check if Mac recognizes your webcam in System Report

Click the Apple menu and select "About This Mac." Click "System Report." In the left sidebar, click "Hardware" and then select "USB" or "Camera" if that option appears. Look for your webcam in the list. If it shows there with no warning symbols, macOS recognizes it.

If your webcam does not appear, restart your Mac. After restart, open System Report again and check the same location. If it still does not appear, your webcam may be disconnected or may have a hardware failure. If it is an external USB camera, try a different USB port on your Mac.

Enable camera permissions for the app you are using

Your webcam may work in the system camera app but fail in Zoom, Google Meet, or another program because that program does not have permission to use the camera. On Windows 10 and 11, open Settings, go to Privacy & Security, then Camera. Scroll down to "App permissions" and turn on the toggle for each app that needs camera access. Restart the app after you change the setting.

On Mac, open System Settings, click Privacy & Security, then Camera. You will see a list of apps that have requested camera access. Make sure the toggle is on for the app you want to use. If the app is not listed, it has not yet requested permission. Open the app and it will prompt you to allow camera access — click Allow.

Restart your computer and update your drivers

Restart your computer completely. Many webcam problems clear after a restart because drivers reload and temporary software conflicts disappear. After restart, test your webcam again in the system camera app.

If the problem persists on Windows, update your camera driver manually. Go to your webcam manufacturer's website (Logitech, Microsoft, Razer, or whoever made your camera) and read the latest driver for your model. Run the installer and restart your computer. On Mac, macOS updates camera drivers automatically, so make sure your system is fully updated by going to System Settings > General > Software Update.

Test your webcam in a video call app

Open Zoom, Google Meet, Microsoft Teams, or another video call app you use regularly. Look for a settings or preferences menu, usually a gear icon. Find the camera or video settings. The app should show a preview of your webcam. If you see your face or the room, your webcam is working in that app. If you see a black screen or "no camera found," the app either does not have permission or cannot find your camera.

If the preview shows your camera but the other person on a call cannot see you, the problem is usually your internet connection or the app's settings, not your webcam hardware. Ask the other person to confirm they cannot see video, then check your internet speed at speedtest.net. If your speed is below 2.5 Mbps upload, your connection is too slow for video.

Physical checks for external webcams

If your webcam is external and plugged into a USB port, unplug it and plug it into a different USB port on your computer. Some ports are faster or more stable than others. Wait 10 seconds for your operating system to recognize the camera again, then test it in the camera app.

Check the USB cable for visible damage — bent connectors, fraying, or kinks. If the cable looks damaged, the camera may not be getting power or data. Try a different USB cable if you have one. If your webcam has a power adapter, make sure it is plugged in and the light on the adapter is on.

If your webcam has a physical lens cover or shutter, make sure it is open. Some webcams ship with a cover to protect the lens during shipping, and users forget to remove it.

Frequently Asked Questions

Why does my webcam show a black screen in the camera app but works in Zoom?

This usually means the camera app does not have permission to use your webcam. On Windows, go to Settings > Privacy & Security > Camera and turn on the toggle for the Camera app. On Mac, go to System Settings > Privacy & Security > Camera and make sure the Camera app is in the list with its toggle on. Restart the camera app after you change the setting.

My webcam worked yesterday but not today. What changed?

A Windows or Mac update may have disabled your camera or changed permissions. Restart your computer first — this fixes most overnight problems. If that does not work, check Device Manager (Windows) or System Report (Mac) to see if your operating system still recognizes the camera. If it does not, your driver may have been removed by an update and needs to be reinstalled from your camera manufacturer's website.

How do I know if my webcam is broken or just disabled?

If Device Manager (Windows) or System Report (Mac) shows your camera with no warning symbols, your hardware is working. If it shows a yellow exclamation mark or does not appear at all, your driver is missing or your camera is disabled in BIOS. If your operating system does not recognize the camera after you restart and update drivers, the hardware may be broken and will likely need replacement.

Can I test my webcam without opening an app?

Not easily. The fastest test is to open your system's built-in camera app (Camera on Windows, Photo Booth on Mac, Cheese on Linux). If you want to avoid installing anything, you can also test your camera in a video call app like Google Meet or Zoom, which will show a preview before you join a call.

What if my webcam works in some apps but not others?

The app that does not work does not have permission to use your camera. Check that app's permissions in your system settings (Settings > Privacy & Security > Camera on Windows, or System Settings > Privacy & Security > Camera on Mac). Make sure the toggle is on for that specific app, then restart the app and try again.