Microsoft Passport (NgcSvc) Service Defaults in Windows 10

Provides process isolation for cryptographic keys used to authenticate to a user's associated identity providers. If this service is disabled, all uses and management of these keys will not be available, which includes machine logon and single-sign on for apps and websites. This service starts and stops automatically. It is recommended that you do not reconfigure this service.

Default Settings

Startup type:Manual
Display name:Microsoft Passport
Service name:NgcSvc
Service type:share
Error control:normal
Group:Cryptography
Object:LocalSystem
Path:%SystemRoot%\system32\svchost.exe -k LocalSystemNetworkRestricted -p
File:%SystemRoot%\system32\ngcsvc.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NgcSvc
Privileges:
  • SeImpersonatePrivilege
  • SeTcbPrivilege
  • SeTakeOwnershipPrivilege

Default Behavior

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

Dependencies

Microsoft Passport cannot be started under any conditions, if the Remote Procedure Call (RPC) service is disabled.

Restore Default Startup Configuration for Microsoft Passport

Before you begin doing this, make sure that all the services on which Microsoft Passport 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 NgcSvc start= demand

3. Close the command window and restart the computer.

The NgcSvc service is using the ngcsvc.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.