Bluetooth Support Service (bthserv) Defaults in Windows 7

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 bthsvcs
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 7 it won't be started if the user doesn't start it. When the Bluetooth Support Service is started, it is running as NT AUTHORITY\LocalService in a shared process of svchost.exe. Other system components, such as drivers and services, may run in the same process. If Bluetooth Support Service fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the bthserv service is not running because of the error.

Dependencies

Bluetooth Support Service is unable to start, if the Remote Procedure Call (RPC) service is stopped or disabled.

Restore Default Startup Configuration for Bluetooth Support Service

Before you begin doing this, make sure that all the services on which Bluetooth Support 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 bthserv start= demand

3. Close the command window and 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 7 installation media.