Due to a change in way Microsoft handles driver signing you may run into an issue installing current versions of our drivers in Windows 7 systems (4.18.09 or newer).
If you receive a message complaining about drivers not being certified or any other message notifying you of a security issue with our driver, please check your Windows update history to confirm that “Security Update for Microsoft Windows (KB3033929) is installed. If your system is set to automatic updates it should have been installed around March of 2015. If it is not installed please download it and install it using Windows update.