Network Connection Broker (NcbService) Service Defaults in Windows 8

Brokers connections that allow Windows Store Apps to receive notifications from the internet.

The Network Connection Broker service does not exist in:

Default Settings

Startup type: Manual
Display name:Network Connection Broker
Service name:NcbService
Service type:share
Error control:normal
Path:%SystemRoot%\System32\svchost.exe -k LocalSystemNetworkRestricted
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NcbService
  • SeCreateGlobalPrivilege
  • SeImpersonatePrivilege

Default Behavior

Network Connection Broker is a Win32 service. In Windows 8 it will not be started until the user starts it. When the Network Connection Broker service is started, it runs as LocalSystem in a process of svchost.exe, sharing it with other services. If Network Connection Broker fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the NcbService service hasn't been started.


Network Connection Broker can't start, if any service from the list below is disabled or not available:

Restore Default Startup Configuration of Network Connection Broker

Before you begin doing this, make sure that all the services on which Network Connection Broker 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 NcbService start= demand

3. Close the command window and restart the computer.

The NcbService service is using the ncbservice.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 8 installation media.