Some old cameras designed for older computers are incompatible with Windows 10. Do the following to check their compatibility: In Device Manager, find your webcam in the Imaging devices tab or Sound, video and game controllers. Right-click or press and hold the camera’s name, and then choose Properties; Choose the Driver tab, click Driver details and find the name of the file that contains such part stream.sys. If you see such a name, then your camera was designed even before Windows 7, so it should be replaced with a newer one.