In Windows 10, use the Privacy page to choose which apps can use a particular feature. Select Start > Settings > Privacy. Select the app (for example, Calendar) and choose which app permissions are on or off. The Privacy page won't list apps with permission to use all system resources.
What happens if we give permission to apps?
Normal permission groups are allowed by default, because they don't pose a risk to your privacy. Dangerous permission groups, however, can give apps access to things like your calling history, private messages, location, camera, microphone, and more.22 Sept 2018
What happens if I deny app permissions?
Once installed, it requests access to your camera. If you click Cancel the app cannot use the camera, so you won't be able to share your own snaps. The rest of the app should continue to work though so you will be able to receive messages, and to view other users' stories.15 Jun 2018
How do I turn off monitor permissions?
Select Start > Settings > Privacy. Select the app (for example, Calendar) and choose which app permissions are on or off.