Prevent Apps from Accessing Camera in Windows 10 using a Registry tweak
You can prevent individual apps from accessing your camera. This might be not so convenient, you might need to allow certain apps to always access the camera. Once you turn it off, none of your installed Store apps will be able to access your camera. The Settings app in Windows 10 provides a simple user interface which should be enough in most cases. Prevent Apps from Accessing Camera in Windows 10
You can pick apps which are allowed to access the camera. If your device does not have a LED for the built-in camera, Windows 10 shows a notification which can be quickly viewed in the Action Center. Most external web cams and portable devices have an activity indicator, which is usually a LED that turns on when the camera is in use by an app.
