Network Connectivity Assistant (NcaSvc) Service Defaults in Windows 10

Provides DirectAccess status notification for UI components.

Default Settings

Startup type:Manual
Display name:Network Connectivity Assistant
Service name:NcaSvc
Service type:share
Error control:normal
Path:%SystemRoot%\System32\svchost.exe -k NetSvcs -p
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NcaSvc
  • SeCreateGlobalPrivilege
  • SeImpersonatePrivilege
  • SeAuditPrivilege

Default Behavior

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


Network Connectivity Assistant cannot be started under any conditions, if the following services are disabled, deleted or working improperly:

Restore Default Startup Configuration for Network Connectivity Assistant

Before you begin doing this, make sure that all the services on which Network Connectivity Assistant 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 NcaSvc start= demand

3. Close the command window and restart the computer.

The NcaSvc service is using the ncasvc.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.