Methods to fix Realtek HD Audio Manager: Fix #1: Use the Advanced System Repair Tool The best way to do this is to download, update or completely reinstall the audio manager, so follow the steps below and get rid of your troubles. In this step by step guide, we’ll show you to fix any issues caused by the Realtek HD Audio driver. For any issues with sound quality or control on your computer, it is advised to update or reinstall the sound drivers. The problems usually include bad sound quality, as well as the program being unaccessible/missing from the taskbar or computer. However, users have reported certain issues with Realtek HD Audio Drivers. Only your system and hardware are evaluated.