The process of downloading the HTC Sync Manager Serial Interface Driver 2.0.6.21 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 HTC Sync Manager Serial Interface Driver 2.0.6.21 for Windows 7 driver from the primary server - this is the manufacturer’s HTC 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 HTC Sync Manager Serial Interface Driver 2.0.6.21 for Windows 7 diver.