Integrated Webcam does not work

[miguel49]

For some time now, my in-built camera on my laptop hasn't worked in any application. When I open Microsoft's "Camera" application, the following error appears: 

Error 0xA00F4244 <NoCamerasAreAttached>

I know that there are already several threads on this forum about the same error, but I've tried almost every solution and I've had no success, and I've even formatted the laptop. Windows doesn't even try to install the drivers automatically, because in the device manager I can't find anything related to the camera (even when I enable the option to show hidden devices and when I click to check for hardware checks).

So the situation is as follows:

- When I go into device manager, even with the hidden devices option enabled, the camera doesn't appear. Restarting the computer or "scanning for hardware changes" doesn't solve the problem.

- The windows version is the most up-to-date.

- Using HP PC Hardware Diagnostics UEFI, I've tried looking for problems with the components, but the Webcam option doesn't appear, as shown in the following image:

When I bought the laptop the camera worked perfectly and I started to get this error overnight, I also remember for a few days the camera magically working again but then it stopped until today.

I'm beginning to think it might be something physical but I find it hard to believe because there's never even been any kind of impact or fall with the laptop.

Anyway, any help would be appreciated.