The process of downloading the Gigabyte GA-Z77X-UD3H-WB WIFI (rev. 1.0) Atheros Bluetooth Driver 7.4.0.140 for Windows 7 driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Gigabyte GA-Z77X-UD3H-WB WIFI (rev. 1.0) Atheros Bluetooth Driver 7.4.0.140 for Windows 7 driver from the primary server - this is the manufacturer’s Atheros 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 Gigabyte GA-Z77X-UD3H-WB WIFI (rev. 1.0) Atheros Bluetooth Driver 7.4.0.140 for Windows 7 diver.