To avoid this possible problem, please be sure to update the SecuGen SDK dll, for example, sgfplib.dll (from FDx SDK Pro). If you install legacy drivers on Windows 7 or later with Windows Biometric Framework, there is a chance that a future Windows Update could automatically replace the legacy driver with the WBF driver, which could cause your application to not work well. If you are using Windows 7 or higher, you can use Windows Biometric Framework (WBF) to quickly and easily login to Windows with your SecuGen Reader. SDKs and Drivers Drivers for U.are.U series (WSDK223) Supported Devices:, U.are.U 5100, U.are.U 5160 OS: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2 Drivers for U.are.U series (WCE_SDK220) Supported Devices:, U.are.U 5100, U.are.U 5160 OS: Windows CE Drivers for U.are.U series (Linux223) Supported Devices:, U.are.U 5100, U.are.U 5160 OS: Linux Drivers for U.are.U series (Android 2.2.3) Supported Devices:, U.are.U 5100, U.are.U 5160 OS: Android SECUGEN.