Microsoft UAA Bus Driver for High Definition Audio (HDAudBus) Service Defaults in Windows 10

High Definition Audio Bus Driver by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Microsoft UAA Bus Driver for High Definition Audio
Service name:HDAudBus
Service type:kernel
Error control:normal
Group:Extended Base
Path:%SystemRoot%\System32\drivers\HDAudBus.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HDAudBus

Default Behavior

Microsoft UAA Bus Driver for High Definition Audio is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If Microsoft UAA Bus Driver for High Definition Audio fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the HDAudBus service has failed to start due to the error.

Restore Default Startup Configuration for Microsoft UAA Bus Driver for High Definition Audio

1. Select your Windows 10 edition and release, and then click Download.

2. Save the Win10_HDAudBus_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The HDAudBus service is using the HDAudBus.sys file that is located in the %WinDir%\System32\drivers folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.