Windows 10: Camera APP not working, but camera works fine on other apps like zoom

Whenever I try to use the camera app, it tells me it can't start my camera. I checked everything, drivers are fine, app permissions are fine, etc. The weird thing is that eg on settings and zoom, teams etc the camera is absolutely fine and does its job. It's just the camera app. I've tried pressing repair under the advanced option on the app, I also tried resetting the app. Nothing is working?The error code is 0xA00F429F <WindowShowFailed> 0xC00D36D5?

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camera doesn't work in camera app but does in other software

Windows 10, 20H2. The camera app was working fine but i installed logitech capture software and after removing that the camera app won't start anymore, errorcode 0xA00f4246 allcameraloadattemptsfailed. Cursed logitech, i knew it, they can't write decent software. Thing is, luckily the camera works in all other software that i tried, OBS, Skype, Zoom, just not in the windows camera app. I tried several solutions found on the net like reinstalling the camera app, no go yet.. Help appreciated.

 

My camera app is opening but there is no LED light and the camera is not working. It's also not working on platforms like Microsoft edge or Google Chrome but it's working fine on Skype or Zoom app.

My camera app is opening but there is no LED light and the camera is not working. It's also not working on platforms like Microsoft edge or Google Chrome but it's working fine on Skype or Zoom app.

 

Camera Works with Zoom Not With Camera App or Bluejeans App

Suddenly the camera (Logitech C930E) no longer works with the Camera App or with Bluejeans. It works with Zoom. I have tried every "solution" offered by every web site addressing the question. None work. I have rebooted and tried the Camera App before using any other app. No go. Driver for the camera is the latest, both per Windows 10 driver update attempt and per the Logitech people. The camera works with Zoom, so it's not a question of bad cable, bad USB port, etc. The microphone in the webcam works with everything, the video doesn't work with Zoom. It's not a Zoom issue, because it worked with Zoom, Bluejeans, and the Camera App until the other day. No updates were done between the last time all worked and the sudden refusal of the Camera App and Bluejeans to work. Error code is 0xA00F4288 <all cameras are reserved> What is reserving the camera? How to find that? I don't see anything in ProcessExplorer indicating that any program is using the camera.