How to Fix a Webcam That’s Not Working

A webcam not working is the failure of an internal or external camera to produce video in Windows or in an application such as Zoom, and the most common cause is camera access being blocked in the Windows privacy settings. Other frequent causes include an application that lacks camera permission, an outdated or corrupt camera driver, the wrong camera selected in the application, a physical shutter or a disabled camera in laptop BIOS, a loose USB connection on an external webcam, and another application already holding the camera. This article explains what causes a webcam to stop working, then gives the step-by-step fixes that resolve most cases.

Each fix names the exact Windows tool, including the camera privacy settings, per-app permissions, Device Manager, the Windows Camera app, and the application device selector. The fixes are ordered from the most common and least disruptive, such as enabling camera access and granting per-app permission, to driver reinstalls and BIOS checks. Apply the fixes in order and test the camera after each one, because a single permission, selection, or driver fault usually accounts for the failure.

What Causes a Webcam to Stop Working?

A webcam stops working when the camera feed is blocked, the wrong device is selected, or the driver fails, so no video reaches the application. The causes below are ranked from most to least common.

• Camera access blocked in Windows privacy settings. The master camera access toggle being off stops every application from using the camera.
• An application without camera permission. A per-app permission left off blocks one application while others still work.
• An outdated or corrupt camera driver. A damaged or missing driver stops Windows from initializing the camera.
• The wrong camera selected in the application. An application set to a virtual or disconnected camera shows no live video.
• A physical shutter or a camera disabled in laptop BIOS. A closed privacy shutter or a BIOS-disabled camera produces a black image.
• A loose USB connection on an external webcam. A damaged port or cable stops an external webcam from being detected.
• Another application using the camera. A camera held by one application is unavailable to a second application at the same time.

Enable Camera Access in Windows Privacy Settings

Turning on camera access in the Windows privacy settings restores the camera for every application when the master toggle is off. The master setting overrides all per-app permissions.

1. Open Windows Settings and select Privacy and security.
2. Scroll to App permissions and select Camera.
3. Set the Camera access toggle to On.
4. Set the Let apps access your camera toggle to On.
5. Restart the application that needs the camera and test the video.

When camera access is on but a single application still fails, the fault is a per-app permission rather than the master toggle. Desktop applications such as Zoom and Microsoft Teams also require the desktop-app camera permission lower on the same page to be on.

Grant Per-App Camera Permission

Granting the specific application permission to use the camera fixes a webcam that works in some applications but not others. Windows controls camera access for each application separately.

1. Open Windows Settings, then Privacy and security, then Camera.
2. Review the list of applications under Let apps access your camera.
3. Set the toggle to On for the application that needs the camera, such as Zoom or Microsoft Teams.
4. Scroll to Let desktop apps access your camera and set it to On for installed desktop programs.
5. Restart the application so the new permission takes effect.

Select the Correct Camera in the Application

Choosing the correct camera in the application settings fixes a black or frozen feed when more than one camera is available. Many applications default to a virtual or previously used camera.

1. Open the video settings inside the application, such as Settings then Video in Zoom.
2. Open the camera drop-down list to view every detected camera.
3. Select the physical webcam by name rather than a virtual camera such as OBS Virtual Camera.
4. Confirm the live preview shows video after the selection.
5. Set the same camera as the default for future calls.

A laptop with both a built-in camera and an external webcam lists two devices, so the application must point to the intended one. Virtual cameras installed by streaming software appear in the list and produce no feed when no source is running.

Update or Reinstall the Camera Driver

Updating or reinstalling the camera driver in Device Manager replaces a corrupt driver that stops Windows from initializing the camera. Windows reinstalls a standard camera driver automatically after removal.

1. Right-click Start and open Device Manager.
2. Expand the Cameras section, or Imaging devices for some webcams.
3. Right-click the camera, select Update driver, then Search automatically for drivers.
4. If the camera still fails, right-click it, select Uninstall device, then restart so Windows reinstalls the driver.
5. Download the manufacturer driver for an external webcam if Windows reports none.

A camera marked with a down arrow in Device Manager is disabled. Right-click the camera and select Enable device to turn it back on.

Check the Physical Shutter or Laptop Camera Key

Opening the physical privacy shutter or pressing the laptop camera key restores a camera that shows a black image while the application reports it is connected. A hardware block produces a dark feed rather than an error.

• Slide open the privacy shutter. Many laptops and external webcams have a sliding cover over the lens that produces a black image when closed.
• Press the camera function key. A laptop key, often F8 or F10 with a camera icon, disables the camera at the hardware level when toggled off.
• Check for an indicator light. A camera light that stays off when an application starts confirms a hardware block.
• Re-enable the camera in BIOS. Enter the laptop BIOS or UEFI at startup and set the integrated camera or webcam option to Enabled.

A camera disabled in BIOS does not appear in Device Manager at all, which separates a BIOS block from a driver or permission fault.

Close Other Applications Using the Camera

Closing every other application that holds the camera frees it for the application that needs it. Windows allows only one application to use a single camera at a time.

1. Close all video applications, including Zoom, Microsoft Teams, Skype, and any browser tab with camera access.
2. Open Task Manager, find background camera applications, and select End task.
3. Close streaming software such as OBS that captures the camera in the background.
4. Reopen only the application that needs the camera.
5. Restart the computer when an application keeps the camera locked after closing.

Test the Webcam in the Windows Camera App

Opening the built-in Windows Camera app confirms whether the camera works at the system level, separating a hardware fault from an application fault. The Camera app uses the same driver every application relies on.

1. Open the Start menu, type Camera, and open the Windows Camera app.
2. Confirm whether the live preview shows video.
3. Use the camera switch icon to cycle between a built-in and external camera.
4. Treat working video in the Camera app with a failing application as an application permission or selection fault.
5. Treat a failing Camera app as a driver, hardware, or privacy-setting fault at the system level.

When the Windows Camera app shows video but a specific application does not, the fault lies in that application permission or its camera selection, not in the camera hardware.

Reseat the External Webcam USB Connection

Reseating the external webcam in a different USB port restores a camera that Windows no longer detects. An external webcam depends on a stable USB connection and adequate port power.

1. Unplug the external webcam and connect it to a different USB port directly on the computer.
2. Use a rear-panel port on a desktop, because rear ports connect directly to the motherboard.
3. Connect a USB webcam to a USB 3.0 port for higher-resolution streams that need more bandwidth.
4. Bypass any USB hub, because an underpowered hub can stop a webcam from initializing.
5. Test the webcam on a second computer to confirm whether the webcam or the port is at fault.

A webcam that disappears from Device Manager when plugged in points to a port, cable, or power fault rather than a driver fault, which overlaps with the steps to resolve a USB device not recognized.

Webcam Symptoms and Their Causes

Key Takeaways

• Enable camera access first. The master camera toggle in Windows privacy settings blocks every application when it is off.
• Grant per-app permission next. A camera that works in some applications but not one needs that application enabled separately.
• Select the correct camera in the app. A black or frozen feed often comes from a virtual or disconnected camera being chosen.
• Check the shutter and BIOS for a black image. A closed cover or a BIOS-disabled camera produces a dark feed rather than an error.
• Test in the Windows Camera app. Working video there isolates the fault to the failing application.

Last Thoughts on a Webcam Not Working

A webcam not working is resolved by enabling camera access first, then moving through per-app permission, camera selection, driver, shutter, and BIOS checks in order. An internal camera depends on Windows privacy settings and a working driver, while an external webcam also depends on a stable USB connection and adequate port power.

When the webcam is one of several dead devices, the steps to fix a keyboard that is not working and to resolve a USB device not recognized apply to the shared connection, and the choice between a built-in and a plug-in camera follows the comparison of wired and wireless peripherals. A full index of input and camera faults sits in the hub of common PC problems.