How to Fix Windows Camera Error 0xA00F4244 <NoCamerasAreAttached>?

Error 0xA00F4244 <NoCamerasAreAttached> means Windows is not detecting a built-in or external camera, so first determine whether the device appears in Device Manager and then follow the matching branch below.^1^

1. Check the physical camera controls

1. For a laptop, open its camera privacy shutter and check for:
   • A camera key on the keyboard, sometimes used with Fn.
   • A camera switch on the laptop’s side.
   • A small slider beside the camera lens.
2. For an external webcam:
   • Disconnect and reconnect it.
   • Try another USB port without using a hub.
   • If possible, test it on another computer.

A disabled physical switch can prevent Windows from recognizing that a camera is installed.^2^

2. Check whether Windows detects the camera

1. Right-click Start and select Device Manager.
2. Look under:
   • Cameras
   • Imaging devices
   • Sound, video and game controllers
3. If the camera is listed:
   • Right-click it.
   • If Enable device appears, select it.
   • If Disable device appears, it is already enabled.
4. If it is not listed:
   • Select View > Show hidden devices.
   • Select Action > Scan for hardware changes.
   • Check the three categories again.

If the camera appears after the scan, restart Windows and test Start > Camera.

3. If the camera is listed, repair its driver

First check Settings > Windows Update > Check for updates. Then open Advanced options > Optional updates and install any available camera or chipset driver updates. Restart the PC afterward.^2^

If that does not resolve it:

1. Open Device Manager.
2. Right-click the camera and select Properties > Driver.
3. If the problem began after an update and Roll Back Driver is available, select it and restart.
4. Otherwise, select Uninstall Device.
5. Select Attempt to remove the driver for this device, and then select OK.
6. Select Action > Scan for hardware changes.
7. Restart Windows and test the Camera app.

Try the generic USB camera driver

If Windows Update provides no working driver and the camera remains listed:

1. In Device Manager, right-click the camera and select Properties.
2. Select Driver > Update driver.
3. Select Browse my computer for drivers.
4. Select Let me pick from a list of available drivers on my computer.
5. Choose USB Video Device, select Next, and restart.^1^

The generic driver may not support manufacturer-specific features such as Windows Hello. If necessary, return to the manufacturer’s driver afterward.

4. Check camera permissions

If Device Manager detects the camera but applications cannot use it:

Windows 11

1. Open Settings > Privacy & security > Camera.
2. Turn on Camera access.
3. Turn on Let apps access your camera.
4. For browsers, Teams, and other traditional desktop programs, also turn on Let desktop apps access your camera.

If Camera access is unavailable or greyed out, an administrator must enable it.^2^

5. If the camera is still missing

Install the camera and chipset drivers for the PC’s exact model from the PC manufacturer’s support site. For an external webcam, use the webcam manufacturer’s driver. Microsoft specifically recommends the manufacturer’s updated driver when Windows Update does not provide a working one.^1^

For an integrated camera that remains completely absent from Device Manager after installing the correct manufacturer drivers:

• Check the PC’s BIOS/UEFI settings for an integrated-camera option and ensure it is enabled.
• Run the PC manufacturer’s hardware diagnostics.
• Contact the manufacturer for service if diagnostics cannot detect the camera.

For an external camera that fails on multiple USB ports and another computer, the webcam or its cable likely requires hardware service or replacement.

References

1. Camera app shows error "0xA00F4244 NoCamerasAreAttached" | Microsoft Support
2. [Windows 11](https://support.microsoft.com/windows/hardware/camera/camera-doesn-t-work-in-windows#general-troubleshooting)