Finally, select to restart the system and press to complete the installation. This package contains the driver for Realtek ALC32xx series High Definition audio codec and is supported on Dell Precision, Latitude and OptiPlex systems that run Windows 7, Windows 8.1 and Windows 10 operating systems. If the Windows popup 'Windows can't verify the publisher of this driver software' message, press 'Install this driver software anyway' to continue the installation. If the screen resolution is lower than 1024*768,press to continue the installation. Then restart the PC and when Windows starts it will (should) detect the sound and install the generic, basic function, High Definition Audio Device (Driver), if. Run the setup.exe program to start the installation. Finally, select to restart the system and press to complete the installation. If the Windows popup 'Digital Signature Not Found' message, press to continue the installation. Operating Systems Operating Systems Windows Vista 32-bit, Windows Vista 64-bit, Windows, Windows 7 64-bit, Windows 7 32-bit Additional Requirements None Popularity. If the screen resolution is lower than 1024*768,press to continue the installation. Before installing the Realtek High Definition Audio Driver, Press the button if Windows detect the Multimedia Audio device.