Bluetooth Audio Gateway Service (BTAGService) Defaults in Windows 10

Service supporting the audio gateway role of the Bluetooth Handsfree Profile.

Default Settings

Startup type:Manual
Display name:Bluetooth Audio Gateway Service
Service name:BTAGService
Service type:share
Error control:normal
Object:NT AUTHORITY\LocalService
Path:%SystemRoot%\system32\svchost.exe -k LocalServiceNetworkRestricted
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BTAGService
  • SeChangeNotifyPrivilege
  • SeIncreaseWorkingSetPrivilege
  • SeCreateGlobalPrivilege

Default Behavior

Bluetooth Audio Gateway Service is a Win32 service. In Windows 10 it is starting only if the user, an application or another service starts it. When the Bluetooth Audio Gateway Service is started, it is running as NT AUTHORITY\LocalService in a shared process of svchost.exe along with other services. If Bluetooth Audio Gateway Service fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the BTAGService service has failed to start due to the error.


Bluetooth Audio Gateway Service cannot be started under any conditions, if the following services are disabled, deleted or working improperly:

Restore Default Startup Configuration of Bluetooth Audio Gateway Service

Before you begin doing this, make sure that all the services on which Bluetooth Audio Gateway Service depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config BTAGService start= demand

3. Close the command window and restart the computer.

The BTAGService service is using the BTAGService.dll file that is located in the C:\Windows\System32 directory. If the file is removed or corrupted, read this article to restore its original version from Windows 10 installation media.