Use a built-in camera in Windows with Boot Camp on Mac
If your Mac or Apple display has a built-in camera, you can use it for video chatting and with other apps that use video when you’re using Windows.
If the camera isn’t working, make sure you have the latest Windows support software installed. For information about installing the Windows support software, see the Apple Support article If some Mac features don‘t work when running Windows in Boot Camp.
Note: Windows doesn’t support external iSight cameras.