You can download the right webcam drivers from Dell Downloads page. First, identify your computer model, click Drivers & Downloads tab and select Windows Vista as operating system if it is not automatically detected. After that, download the latest webcam files available and press Windows + Pause/Break key combination. Open Device Manager, expand the Imaging devices list, right-click the webcam icon and select Update Driver Software. Use the Browse option to navigate to the downloaded package, select the driver and install it following the on-screen instructions.