A driver is a software component that allows your computer to communicate with a hardware device, such as a USB PC camera. The driver acts as a translator, enabling your computer to understand the camera's language and control its functions. Without a driver, your computer won't be able to recognize or use your camera.
Getting the to work on a modern OS requires disabling driver signature enforcement (for unsigned drivers) or using compatibility mode. Follow these steps carefully.
If the camera is plugged in but showing a yellow exclamation mark in Device Manager, or if your video is black, try these three fixes before searching for a rare driver disc.