Troubleshoot Camera App error code 0xA00F4244 (NoCameraAreAttached)

Error 0xA00F4244 (NoCamerasAreAttached) means Windows cannot detect the camera. Use these steps to troubleshoot on Windows 11:

1. Check hardware and basic connections
   • If using an external webcam, make sure it is firmly plugged into the USB port and try a different USB port.
   • If using a built‑in laptop camera, ensure any physical privacy shutter/slider over the lens is open.
   • Some laptops have a function key (for example F4 or a key with a camera icon) that enables/disables the camera; press that key (sometimes with Fn) to turn the camera on.
2. Confirm the camera is enabled in Device Manager
   1. Select Start > Device Manager.
   2. Expand Cameras.
   3. Right‑click the camera in the list.
   4. If Enable device is shown, select it to enable the camera. If Disable device is shown, the camera is already enabled.
3. Check Windows camera privacy settings
   1. Select Start > Settings > Privacy > Camera.
   2. Under Allow access to the camera on this device, select Change and turn on Camera access for this device.
   3. Make sure apps that need the camera are allowed to use it.
4. Update the camera driver via Windows Update
   • Use Windows Update to install any available driver updates for the camera. For details, see Automatically get recommended and updated hardware drivers in the linked article.
5. Switch to the generic USB Video Device driver (if updating did not help)
   1. Right‑click Start and select Device Manager.
   2. Expand Cameras.
   3. Right‑click the problem camera and select Properties.
   4. Go to the Driver tab and select Update driver.
   5. Select Browse my computer for drivers.
   6. Select Let me pick from a list of available drivers on my computer.
   7. Select USB Video Device, then select Next to install it.
   8. When Windows has successfully updated your drivers appears, select Close and test the camera.
6. Download and install the latest driver from the manufacturer (if needed)
   1. In Device Manager, expand Cameras, right‑click the camera, and select Properties.
   2. On the General tab, note the Manufacturer and model/name.
   3. Go to the camera or PC manufacturer’s support site and download the latest camera driver for the exact model and Windows version.
   4. Install the driver following the manufacturer’s instructions, or use the Update driver manually steps described in the referenced article.
7. Run the Windows Camera troubleshooter
   • Open the Get Help app and run the Windows Camera troubleshooter. It will apply automated fixes for common camera issues.

If the camera still is not detected after these steps, the issue may be hardware‑related and require device or camera service.

References:

• Camera app shows error "0xA00F4244 NoCamerasAreAttached"
• Camera doesn't work in Windows