Maybe the driver of your camera is already outdated or the lens of your camera has a problem. You can check on this when you do some software updates or if you have the software for system check. Once the system is checked there is a button where you can update your driver but if it will not update or you don't understand this thing better bring your computer to the technician or an expert who understands and can diagnose your camera problem. If you are using a desktop maybe you can try if you can buy a separate camera where you can use for your camera just install in the computer to work.