Test your webcam in Windows or Mac settings first
The fastest way to check whether your webcam works is to open your operating system's built-in camera app or settings panel. You do not need to read anything or open a web browser. On Windows 10 and 11, search for "Camera" in the Start menu and click the Camera app — if your webcam is working, you will see a live video feed of yourself within a few seconds. On Mac, open System Preferences (or System Settings on newer versions), go to Security & Privacy, then Camera, and you will see a list of apps that have permission to use the camera. If the list is empty or grayed out, your camera may not be detected.
If you see a black screen or an error message instead of video, note exactly what it says — this tells you whether the problem is a hardware failure, a driver issue, or a permissions block. Write down the error code or message word-for-word; you will need it if you contact support later.
Key Takeaways
- Windows users can test their webcam by opening the Camera app from the Start menu and checking for a live video feed.
- Mac users should check System Preferences or System Settings under Security & Privacy to see whether the camera is listed and enabled.
- If you see a black screen or error message, write down the exact text — it will help you diagnose whether the problem is hardware, drivers, or permissions.
- Restarting your laptop often fixes temporary camera failures before you try anything else.
- If the camera app does not detect your webcam at all, the device driver may be missing or outdated.
Check Device Manager on Windows for camera drivers
If the Camera app shows a black screen or says "No camera found," your webcam hardware may be connected but your operating system cannot talk to it. This usually means the device driver — the software that lets Windows recognize and control the camera — is missing or out of date. Open Device Manager by right-clicking the Start button and selecting "Device Manager," then look for a section called "Cameras" or "Imaging devices." If you see your camera listed there with a yellow warning triangle or a red X, the driver needs attention.
Right-click the camera name and select "Update driver." Windows will search for a newer version online. If that does not work, select "Uninstall device," restart your laptop, and Windows will usually reinstall the driver automatically when it boots back up. If Device Manager does not show a Cameras section at all, your webcam may not be recognized as a hardware device — this is less common but can happen if the camera is physically disconnected inside the laptop.
Restart your laptop before troubleshooting further
A restart clears temporary software glitches that often block camera access. Close all open apps, shut down your laptop completely (not sleep mode), wait 30 seconds, and power it back on. Then open the Camera app again and check for video. Many camera problems — frozen feeds, "device in use" errors, or apps that cannot find the camera — disappear after a restart because background processes that were holding the camera hostage have been cleared.
If restarting fixes the problem, you are done. If the camera still does not work, move on to checking permissions or drivers. A restart is always the first step because it costs nothing and solves roughly half of all temporary hardware issues.
Review camera permissions in Windows or Mac settings
Even if your webcam is physically connected and the driver is installed, Windows or Mac may block apps from using it. On Windows 10 and 11, go to Settings > Privacy & Security > Camera. You will see a toggle for "Camera access" — make sure it is turned on. Below that, you will see a list of apps that have permission to use the camera. If the app you want to use (Zoom, Teams, a web browser) is not listed, or if its toggle is off, turn it on.
On Mac, go to System Preferences > Security & Privacy > Camera. You will see a list of apps that have requested camera access. If an app is not listed, it has never asked for permission, and it will ask the next time you try to use the camera — click "Allow" when the prompt appears. If an app is listed but you want to revoke its access, uncheck the box next to it.
Test your camera in a video call app or web browser
Once you confirm the camera works in the built-in Camera app, test it in the app you actually plan to use — Zoom, Google Meet, Microsoft Teams, or a web browser. Open the app, start a new video call or meeting (you do not have to invite anyone), and check whether you see your video feed. Many camera problems only show up in specific apps because of permission settings or app-specific bugs.
If the camera works in the Camera app but not in Zoom, for example, the problem is usually that Zoom does not have camera permission. Go back to your privacy settings, find Zoom in the camera permissions list, and turn it on. If the camera works in one app but not another, the issue is almost always permissions, not hardware.
Check for physical obstructions or hardware damage
Before assuming your camera is broken, look at it. If your laptop has a built-in webcam above the screen, check whether the lens is covered by a sticker, a sliding shutter, or dust. Gently wipe the lens with a soft, dry cloth — do not use water or cleaning solution. If your laptop has a USB webcam plugged into a port, make sure the cable is fully inserted and the port is not loose or damaged.
If you see cracks in the camera lens, liquid damage around the camera area, or the camera is visibly loose inside the laptop, the hardware is likely damaged and will need to be repaired or replaced by a technician. This is not something you can fix yourself without opening the laptop.
Contact the laptop manufacturer if hardware is not detected
If Device Manager shows no camera at all, the Camera app says "No camera found," and you have restarted your laptop, the camera hardware may be disconnected inside the laptop or the motherboard port is damaged. This requires opening the laptop or sending it to a repair center. Before you do that, check your laptop's manual or the manufacturer's support website to see whether there is a BIOS setting that disables the camera — some business laptops have this option for security reasons.
If the BIOS is not the issue, contact the laptop manufacturer's support line with your model number and the error message you saw. They can tell you whether the camera is under warranty and whether a repair is worth the cost. If your laptop is old or the repair is expensive, an external USB webcam is usually cheaper and easier than replacing the built-in one.
Frequently Asked Questions
Why does my camera show a black screen even though it is turned on?
A black screen usually means the driver is installed but the camera is not getting power, or another app is already using the camera. Close all other apps that might use the camera (Zoom, Teams, web browsers), restart your laptop, and try again. If it is still black, check Device Manager to see whether the camera driver needs an update.
How do I know if my webcam is being used by another app?
On Windows, open Task Manager (Ctrl+Shift+Esc), go to the Performance tab, and look for "Camera" — if it shows activity, something is using it. On Mac, open Activity Monitor, search for "camera," and see which processes are running. Close the app that is using the camera, then try your camera app again.
Can I test my camera without opening any apps?
Yes. On Windows, the Camera app is the simplest test. On Mac, you can use Photo Booth (search for it in Spotlight) to see a live camera feed without any setup. Both are built into the operating system and do not require downloads.
What if my camera works in the Camera app but not in Zoom?
Zoom does not have camera permission. Go to your privacy settings, find the Camera section, and make sure Zoom is listed and toggled on. Then restart Zoom and try again.
Is it safe to use an external USB webcam if my built-in camera does not work?
Yes. Plug a USB webcam into any available port, and your operating system will usually recognize it automatically. You may need to install a driver from the manufacturer's website, but most modern USB cameras work without extra software. This is often cheaper than repairing a built-in camera.