The process of downloading the Razer Lachesis Mouse Firmware Updater 1.94 driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Razer Lachesis Mouse Firmware Updater 1.94 driver from the primary server - this is the manufacturer’s Razer 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 Razer Lachesis Mouse Firmware Updater 1.94 diver.