Contour cameras cannot be configured or used as a USB webcam attached to a computer.  They are not able to send a live signal over the USB cable.

The Contour+ and Contour+2 both have an HDMI port and can stream HDMI signal but in order to use that signal on a computer but the computer must have an HDMI capture port.

Most computers do not come with an HDMI capture port and it must be an additional item you purchase and install.