Simply download and install the new version of the program. The old version should be replaced automatically. If not, use Add or Remove Programs feature (Control Panel > Uninstall a program) to remove the utility from your computer. After that, update the drivers following the on-screen instructions. If you don't want to download the latest version of the program, you can update the drivers manually. Navigate to the official web page, select your operating system, click Next and download and install the files.