After successful installation of Realtek High Definition Audio Codec users report that Realtek HD Audio Manager is not able to start. It should start automatically with Windows, upon logging in, but it does not. Even if ran manually it will not load.
It is reported that described behaviour is occurring with Realtek High Definition Audio Codec version R2.82.
If you are having trouble with this issue, easiest workaround is to fall back and install the previous version of driver, Realtek High Definition Audio Codec R2.81
After you have successfully removed R2.82 Realtek HD Audio Codec, you can find the corresponding R2.81 driver for your soundcard and operating system on the flowing web site.
Note: Win 8 (32bit) and Win 8 (64bit) drivers work on Windows 10 (32bit and 64bit) systems.
Once you’re done with the installation, Realtek HD Audio Manager will be able to start and you will again see the icon in your system tray.