Note: If this tutorial worked for you (and it should work), please leave a comment below. Thanks.
The main reason why this could happen is that, the app permission was either denied in the first place or it was never asked for. For example, Travel app might use your location to help identify interesting landmarks near you, a Photo app may use your picture library to create a slide show, or an Instant Messaging app may use the webcam connected to your PC for video chats. So if the application fails to prompt or you deny it, when asked for the first time, then it stays blocked until you manually unblock it i.e. manually set the permission.
- Open your Camera application
- Press Win + C to open the Charms
- Click on Settings
- Now click on Permissions - that’s where we’ll give permission for the Camera app to use our Webcam & Microphone.
- Now change the Webcam and microphone toggle from Off to On