Bluetooth Support Service (bthserv) Defaults in Windows 10

The Bluetooth service supports discovery and association of remote Bluetooth devices. Stopping or disabling this service may cause already installed Bluetooth devices to fail to operate properly and prevent new devices from being discovered or associated.

Default Settings

Startup type:Manual
Display name:Bluetooth Support Service
Service name:bthserv
Service type:share
Error control:normal
Object:NT AUTHORITY\LocalService
Path:%SystemRoot%\system32\svchost.exe -k LocalService
File:%SystemRoot%\system32\bthserv.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\bthserv
Privileges:
  • SeChangeNotifyPrivilege
  • SeCreateGlobalPrivilege
  • SeImpersonatePrivilege

Default Behavior

Bluetooth Support 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 Support Service is started, it is running as NT AUTHORITY\LocalService in a shared process of svchost.exe along with other services. If Bluetooth Support 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 bthserv service has failed to start due to the error.

Dependencies

While Bluetooth Support Service is stopped, disabled or working incorrectly, the Bluetooth Handsfree Service cannot be launched.

Restore Default Startup Configuration for Bluetooth Support Service

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

2. Save the Win10_bthserv_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The bthserv service is using the bthserv.dll file that is located in the %WinDir%\system32 folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.