Windows Push Notifications System Service (WpnService) Defaults in Windows 10

This service runs in session 0 and hosts the notification platform and connection provider which handles the connection between the device and WNS server.

Default Settings

Startup type:

Windows 10 Home 1507	Manual
Windows 10 Pro 1507	Manual
Windows 10 Education 1507	Manual
Windows 10 Enterprise 1507	Manual
Windows 10 Home 1511	Manual
Windows 10 Pro 1511	Manual
Windows 10 Education 1511	Manual
Windows 10 Enterprise 1511	Manual
Windows 10 Home 1607	Automatic
Windows 10 Pro 1607	Automatic
Windows 10 Education 1607	Automatic
Windows 10 Enterprise 1607	Automatic
Windows 10 Home 1703	Automatic
Windows 10 Pro 1703	Automatic
Windows 10 Education 1703	Automatic
Windows 10 Enterprise 1703	Automatic
Windows 10 Home 1709	Automatic
Windows 10 Pro 1709	Automatic
Windows 10 Education 1709	Automatic
Windows 10 Enterprise 1709	Automatic
Windows 10 Home 1803	Automatic
Windows 10 Pro 1803	Automatic
Windows 10 Education 1803	Automatic
Windows 10 Enterprise 1803	Automatic
Windows 10 Home 1809	Automatic
Windows 10 Pro 1809	Automatic
Windows 10 Education 1809	Automatic
Windows 10 Enterprise 1809	Automatic
Windows 10 Home 1903	Automatic
Windows 10 Pro 1903	Automatic
Windows 10 Education 1903	Automatic
Windows 10 Enterprise 1903	Automatic
Windows 10 Home 2004	Automatic
Windows 10 Pro 2004	Automatic
Windows 10 Education 2004	Automatic
Windows 10 Enterprise 2004	Automatic
Windows 10 Home 20H2	Automatic
Windows 10 Pro 20H2	Automatic
Windows 10 Education 20H2	Automatic
Windows 10 Enterprise 20H2	Automatic
Windows 10 Home 21H1	Automatic
Windows 10 Pro 21H1	Automatic
Windows 10 Education 21H1	Automatic
Windows 10 Enterprise 21H1	Automatic
Windows 10 Home 21H2	Automatic
Windows 10 Pro 21H2	Automatic
Windows 10 Education 21H2	Automatic
Windows 10 Enterprise 21H2	Automatic
Windows 10 Home 22H2	Automatic
Windows 10 Pro 22H2	Automatic
Windows 10 Education 22H2	Automatic
Windows 10 Enterprise 22H2	Automatic

Display name:

Windows Push Notifications System Service

Service name:

WpnService

Service type:

Error control:

normal

Object:

LocalSystem

Path:

%SystemRoot%\system32\svchost.exe -k netsvcs -p

File:

%SystemRoot%\system32\WpnService.dll

Registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WpnService

Privileges:

SeChangeNotifyPrivilege
SeImpersonatePrivilege
SeCreateGlobalPrivilege
SeTcbPrivilege
SeRestorePrivilege
SeTakeOwnershipPrivilege
SeBackupPrivilege

Default Behavior

Windows Push Notifications System Service is a Win32 service. It is starting only if the user, an application or another service starts it in all editions of Windows 10 1507, Windows 10 1511. This service is starting automatically when the operating system starts in all editions of Windows 10 1607, Windows 10 1703, Windows 10 1709, Windows 10 1803, Windows 10 1809, Windows 10 1903, Windows 10 2004, Windows 10 20H2, Windows 10 21H1, Windows 10 21H2, Windows 10 22H2.

When the Windows Push Notifications System Service is started, it is running as LocalSystem in a shared process of svchost.exe along with other services. If Windows Push Notifications System 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 WpnService service has failed to start due to the error.

Dependencies

Windows Push Notifications System Service cannot be started under any conditions, if the Remote Procedure Call (RPC) service is disabled.

Restore Default Startup Configuration of Windows Push Notifications System Service

Before you begin doing this, make sure that all the services on which Windows Push Notifications System Service depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

2. Depending on the version of your operating system, copy the commands below, paste them into the command window and press ENTER.

For Windows 10 1507 Home, Windows 10 1507 Pro, Windows 10 1507 Education, Windows 10 1507 Enterprise, Windows 10 1511 Home, Windows 10 1511 Pro, Windows 10 1511 Education, Windows 10 1511 Enterprise:
sc config WpnService start= demand

For Windows 10 1607 Home, Windows 10 1607 Pro, Windows 10 1607 Education, Windows 10 1607 Enterprise, Windows 10 1703 Home, Windows 10 1703 Pro, Windows 10 1703 Education, Windows 10 1703 Enterprise, Windows 10 1709 Home, Windows 10 1709 Pro, Windows 10 1709 Education, Windows 10 1709 Enterprise, Windows 10 1803 Home, Windows 10 1803 Pro, Windows 10 1803 Education, Windows 10 1803 Enterprise, Windows 10 1809 Home, Windows 10 1809 Pro, Windows 10 1809 Education, Windows 10 1809 Enterprise, Windows 10 1903 Home, Windows 10 1903 Pro, Windows 10 1903 Education, Windows 10 1903 Enterprise, Windows 10 1909 Home, Windows 10 1909 Pro, Windows 10 1909 Education, Windows 10 1909 Enterprise, Windows 10 2004 Home, Windows 10 2004 Pro, Windows 10 2004 Education, Windows 10 2004 Enterprise, Windows 10 20H2 Home, Windows 10 20H2 Pro, Windows 10 20H2 Education, Windows 10 20H2 Enterprise, Windows 10 21H1 Home, Windows 10 21H1 Pro, Windows 10 21H1 Education, Windows 10 21H1 Enterprise, Windows 10 21H2 Home, Windows 10 21H2 Pro, Windows 10 21H2 Education, Windows 10 21H2 Enterprise, Windows 10 22H2 Home, Windows 10 22H2 Pro, Windows 10 22H2 Education, Windows 10 22H2 Enterprise:
sc config WpnService start= auto
sc start WpnService

3. Close the command window and restart the computer.

The WpnService service is using the WpnService.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 10 installation media.