The process of downloading the TRENDnet TK-409K KVM Switch Audio Utility 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 TK-409K KVM Switch Audio Utility 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 TK-409K KVM Switch Audio Utility diver.