The process of downloading the Iwill XP4 Bios 1.05a driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Iwill XP4 Bios 1.05a driver from the primary server - this is the manufacturer’s Iwill 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 Iwill XP4 Bios 1.05a diver.