Realtek HD Audio Drivers is a software package for Realtek High Definition audio codec. This will enable your computer to communicate with audio devices such as speakers and sound cards. It is important to have a 64-bit version of a Windows operating system installed in your computer before downloading Realtek HD Audio Drivers x64. It can either be Windows Vista, Windows 7, Windows 8, or Windows 10. Advanced users can also use this program to write programs that interact with the driver without affecting any hardware. This opens up opportunities for running programs without needing specific parts.