How do I fix this
Error messages like ‘0xA00f4244<NoCamerasAreAttached>’ laptops and desktops come in all types of configurations but try these basic steps to get your camera working.
1. Are you sure your computer has a camera?
Many models of computers did not come with webcams. Before you go any further, check and be sure there is a camera lens staring back at you. You can look up the product specifications for your model for confirmation.
If you have an external web cam, try disconnecting it, restarting the PC, and then reconnecting the USB cable. Or try testing it in a different USB port or even a different PC.
Newer laptops have a Kill Switch feature designed to physically disconnect your webcam. This is helpful for preventing bad people from activating your webcam remotely but can be overlooked when trying to use the webcam for video conferencing. If your model has a kill switch, make sure it’s switched on.
3. Try a hard reset
When Windows doesn’t see devices like cameras, sometimes it just needs to be forced to look again.
Once detected, you should see the camera in the Device Manager. Right-click the Start button and select Device Manager. Expand the Cameras section to see your camera. TIP: You can disable the web cam here in the Device Manager by right-clicking on the camera and select Disable Device. Don’t forget to enable it later if needed.
Sometimes Windows needs the latest camera driver for the camera to function well. While in the Device Manager, right-click on your camera and select Update Driver.
Then click Search Automatically for updated driver software. The latest driver is always available via Windows Update.