The process of downloading the Sony Vaio VPCSA4SGX/X Intel WiDi Software 3.5.40.0 for Windows 8 64-bit driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Sony Vaio VPCSA4SGX/X Intel WiDi Software 3.5.40.0 for Windows 8 64-bit driver from the primary server - this is the manufacturer’s Intel 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 Sony Vaio VPCSA4SGX/X Intel WiDi Software 3.5.40.0 for Windows 8 64-bit diver.