The process of downloading the Asrock Fatal1ty Z77 Performance XFast LAN Utility 6.61.1880 driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Asrock Fatal1ty Z77 Performance XFast LAN Utility 6.61.1880 driver from the primary server - this is the manufacturer’s REALTEK 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 Asrock Fatal1ty Z77 Performance XFast LAN Utility 6.61.1880 diver.