The process of downloading the TRENDnet TEW-509UB A1 Wireless Network Adapter Vista Driver driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the TRENDnet TEW-509UB A1 Wireless Network Adapter Vista Driver driver from the primary server - this is the manufacturer’s TRENDnet 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 TRENDnet TEW-509UB A1 Wireless Network Adapter Vista Driver diver.