The process of downloading the Sis SiS671/771 Driver 5.01d WHQL driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Sis SiS671/771 Driver 5.01d WHQL driver from the primary server - this is the manufacturer’s SIS official website). If the download still fails to run, check whether your anti-virus software is not blocking the connection to the manufacturer server of the Sis SiS671/771 Driver 5.01d WHQL diver.