The Audio manager gives control of many extra settings that are not in Windows 10 such as speaker configurations, Sound effects and Virtual Surround settings. Realtek’s onboard sound card device drivers include an Audio Manager that is packaged with the installation of the Codec. After version updates/service packs within Microsoft Windows 11/10 versions or even major upgrade from Windows 7 or Windows 8 there has been a plague of issues related to Realtek sound device chipsets being removed during the process, even though the drivers for these earlier Operating Systems is the same, they get removed sometimes.