Update the camera driver first, because Windows 11 displays 0xA00F4244 <NoCamerasAreAttached> when it cannot recognize the built-in or external camera, commonly because its driver is missing, outdated, or corrupted.[^1^](https://support.microsoft.com/windows/hardware/camera/camera-app-shows-error-0xa00f4244-nocamerasareattached#download-and-install-an-updated-driver-from-manufacture's-website "Camera app shows error "0xA00F4244 NoCamerasAreAttached" | Microsoft Support")
1. Check the hardware control
- Open any physical privacy shutter over the camera lens.
- Check the keyboard for a camera key, sometimes used with Fn, or a camera switch on the laptop’s side or above its display.^2^
- For an external webcam, disconnect it and connect it directly to another USB port rather than through a hub.
Then reopen the Camera app.
2. Install camera-driver updates
- Open Settings → Windows Update.
- Select Check for updates.
- Install available updates, including camera-related driver updates if offered.
- Restart the PC and test the Camera app.
You can also select Get help on the error screen and run the automated Windows Camera troubleshooter.[^1^](https://support.microsoft.com/windows/hardware/camera/camera-app-shows-error-0xa00f4244-nocamerasareattached#download-and-install-an-updated-driver-from-manufacture's-website "Camera app shows error "0xA00F4244 NoCamerasAreAttached" | Microsoft Support")
3. If the camera appears in Device Manager
- Right-click Start → Device Manager.
- Expand Cameras.
- Right-click the affected camera and select Properties.
- Open Driver → Update driver.
- Select Browse my computer for drivers → Let me pick from a list of available drivers on my computer.
- Select USB Video Device → Next.
- Close the confirmation window, restart Windows, and test the Camera app.
This switches the camera to Windows’ generic USB video driver and is the documented fallback when Windows Update does not provide a working driver.[^1^](https://support.microsoft.com/windows/hardware/camera/camera-app-shows-error-0xa00f4244-nocamerasareattached#download-and-install-an-updated-driver-from-manufacture's-website "Camera app shows error "0xA00F4244 NoCamerasAreAttached" | Microsoft Support")
If USB Video Device is unavailable or does not work:
- In the camera’s Properties → General tab, note the manufacturer and model.
- For a built-in camera, visit the PC manufacturer’s support site and obtain the camera driver for the exact computer model.
- Install it, restart the computer, and test again.
If Device Manager reports Microsoft as the manufacturer, Windows may currently be using a generic driver; use the computer manufacturer’s documentation to identify the actual camera.[^1^](https://support.microsoft.com/windows/hardware/camera/camera-app-shows-error-0xa00f4244-nocamerasareattached#download-and-install-an-updated-driver-from-manufacture's-website "Camera app shows error "0xA00F4244 NoCamerasAreAttached" | Microsoft Support")
4. If Cameras is missing from Device Manager
In Device Manager:
- Select View → Show hidden devices.
- Select Action → Scan for hardware changes.
- Look under both Cameras and Imaging devices.
- If the camera appears disabled, right-click it and select Enable device.
- If it remains absent, install the camera driver supplied for the exact PC model and restart.^3^
If the camera remains absent after the correct manufacturer driver is installed—and its physical camera switch is enabled—Windows is not detecting the hardware. Contact the computer manufacturer or a repair provider to inspect the built-in camera and its internal connection.^3^
References