Start with the simplest fixes first
A webcam that won't work usually fails for one of three reasons: the camera is physically blocked or disabled, your operating system can't find the driver, or the process trying to use it doesn't have permission. Before you troubleshoot software, check the physical things first—they solve the problem in about half of cases.
Look at the webcam lens itself. If it's covered by a sticker, tape, or a sliding shutter, remove it. Check whether a small LED light next to the lens is lit; if it's dark, the camera may be disabled in your system settings or BIOS. On laptops, some models have a keyboard shortcut (often Fn plus a key with a camera icon) that toggles the webcam on and off. Press it and wait a few seconds to see if the light comes on.
Key Takeaways
- Check the physical camera first: remove any covers, look for a disabled LED light, and try keyboard shortcuts that toggle the webcam on and off.
- Restart your computer completely, then check Device Manager (Windows) or System Report (Mac) to see whether the operating system recognizes the camera at all.
- If the camera appears in Device Manager but shows an error, uninstall the driver and let Windows reinstall it automatically.
- Grant permission for individual applications to use the camera through your privacy settings, since many programs won't work without it.
- If the camera still doesn't work after these steps, try a different USB port or test the camera in a different process to narrow down whether the problem is hardware or software.
Restart your computer and check Device Manager
Restart your computer completely—not sleep mode, but a full shutdown and restart. Many webcam problems are temporary and clear after a restart. Wait at least 30 seconds after shutdown before turning the computer back on.
Once it's back up, check whether your operating system recognizes the camera. On Windows, open Device Manager by right-clicking the Start button and selecting "Device Manager." Look for a section called "Cameras" or "Imaging devices." If you see your webcam listed there with no warning symbol or error code, the hardware is recognized. If the camera appears with a yellow exclamation mark or a red X, there's a driver problem. On Mac, open System Report from the Apple menu, go to System Report, then click "USB" in the left sidebar and look for your camera in the list.
If your camera doesn't appear in Device Manager or the USB list at all, the computer isn't detecting it. Try unplugging the camera, waiting 10 seconds, and plugging it back in. If it still doesn't show up, try a different USB port—some ports on the same computer may not have enough power to run the camera.
Reinstall or update the camera driver
If the camera appears in Device Manager with an error symbol, the driver needs attention. Right-click the camera name and select "Uninstall device." When prompted, check the box that says "Delete the driver software for this device" and confirm. Restart your computer. Windows will automatically search for and reinstall the driver when it starts up.
If the camera appears in Device Manager with no error but still doesn't work in applications, try updating the driver instead. Right-click the camera, select "Update driver," then choose "Search automatically for updated driver software." Windows will check for a newer version. If an update is found, install it and restart.
On Mac, drivers are built into the operating system and don't need to be installed separately. If your Mac doesn't recognize the camera, try resetting the System Management Controller (SMC) by shutting down, then pressing and holding Shift + Control + Option (all on the left side of the keyboard) plus the power button for 10 seconds. Release all keys and turn the computer back on.
Check process permissions for the camera
Even if your operating system recognizes the camera, individual applications need permission to use it. On Windows 10 and 11, open Settings, go to "Privacy & security," then click "Camera." Make sure the toggle at the top that says "Camera access" is turned on. Below that, you'll see a list of applications. Turn on the toggle next to any program you want to use the camera with—for example, Zoom, Skype, or your web browser.
On Mac, the first time an process tries to use the camera, you'll see a prompt asking for permission. Click "Allow." If you denied permission by mistake, go to System Settings, click "Privacy & Security," select "Camera," and you'll see a list of applications. Remove the app from the list and try using the camera again—you'll get the permission prompt a second time.
If you're using a web browser like Chrome or Firefox, the browser itself may need camera permission at the operating system level, and then individual websites need permission from the browser. Check both layers: first in your operating system privacy settings, then in the browser's settings (usually under Privacy or Permissions).
Test the camera in a different process
If the camera works in one program but not another, the problem is usually permissions or a setting in the broken process, not the camera itself. Try opening the camera in Windows Camera (built into Windows 10 and 11) or Photo Booth (built into Mac). If it works there, the camera hardware is fine.
If it doesn't work in the built-in camera app either, go back to Device Manager or System Report and verify the camera is still recognized. If it is, try unplugging and replugging the camera one more time. If the built-in app still won't show a picture, the camera may have a hardware problem and may need to be replaced.
Check for USB power and cable issues
Webcams that plug into USB ports draw power from the port itself. If your computer is running on battery power and the battery is low, some USB ports may not have enough power to run the camera. Plug your computer into power and try again.
If the camera is connected through a USB hub (a device that lets you plug multiple USB items into one port), try plugging it directly into the computer instead. Some hubs don't provide enough power. If you're using an extension cable, try removing it and plugging the camera directly into the computer.
Inspect the USB cable for damage—bent connectors, fraying, or visible cracks can prevent the camera from working. If the cable looks damaged, the camera may need to be replaced.
Disable conflicting software and check BIOS settings
Some security software, antivirus programs, or privacy tools can block camera access even after you've given permission in Windows or Mac settings. If you have software like that installed, check its settings for camera or privacy controls. Look for a section that lists blocked devices or applications and see whether your camera or the process you're trying to use is on a blocked list.
On some computers, particularly business laptops, the camera can be disabled in BIOS (the firmware that runs before Windows starts). Restart your computer and watch for a prompt during startup that says "Press F2" or "Press Delete" to enter Setup or BIOS. The exact key varies by manufacturer. Once in BIOS, look for a section called "Integrated Peripherals," "Onboard Devices," or "Security," and find an option for the camera or "Integrated Camera." If it's disabled, enable it, save, and restart.
Frequently Asked Questions
Why does my camera work in one app but not another?
The process that isn't working either doesn't have permission to use the camera, or it's using a setting that turns the camera off. Check your operating system privacy settings to make sure the app has camera permission. Then open the app's own settings and look for a camera or video option—it may be disabled there.
My camera shows up in Device Manager but doesn't work. What do I do?
Uninstall the driver completely (including the driver software itself when prompted), restart your computer, and let Windows reinstall it. If that doesn't work, check that the process you're using has permission to access the camera in your privacy settings.
Can a Windows update break my webcam?
Yes. After a major Windows update, the driver for your camera may stop working. Restart your computer, open Device Manager, and check whether the camera shows an error. If it does, uninstall the driver and restart again so Windows can reinstall it.
What if my camera works but the picture is upside down or sideways?
This is usually a setting in the process, not a hardware problem. Open the app's settings or preferences and look for a video or camera section. Many programs have a "rotate" or "flip" option. If the app doesn't have that option, try rotating it in Windows Camera first to confirm the camera itself isn't mounted upside down.
Is it safe to cover my webcam when I'm not using it?
Yes. Using a physical cover, tape, or a sliding shutter is safe and common. Just make sure the cover doesn't leave residue on the lens when you remove it. Avoid stickers that are hard to peel off—use a removable cover or tape instead.