Under the "Connected cameras" section, click on the webcam installed on the computer. (Image credit: Future) Use the Brightness setting to adjust the camera brightness. Use the Contrast setting to adjust the device contrast. (Optional) Use the Video rotation setting to rotate the camera right 90, left 90, or 180 degrees. (Image credit: Future)

If you're using an external camera, try using it with a different USB port on your device first. If that doesn't work, or your camera is built in on your device, try this: Select Start, type device manager, then select it from the search results. Find your camera under Cameras, Imaging devices, or Sound, video and game controllers.