Windows 10: Windows Push Notifications User Service (wpnuserservice) Constantly Crashing

Since 9/1/2018 (17 days ago) the wpnuserservice has been constantly crashing, causing all notifications not to come in.


(notable symptoms include the focus assist button not working in the action center and visiting the focus assist page in the settings app causing the app to immediately crash.) The service crash seems to correlate with incoming notifications, such as receiving a new message in Skype.


Strangely the attempted service recovery actions (restart the service) fails all 3 times stating that and instance of the service is already running, despite clearly not running. However, manually starting the service via net start <servicename> works every time, and restores all functionality, until the next crash. I wonder if the restart fails because it is one of those annoying "user services" where the name changes each time (the ones with the random numbers after the name). This is very annoying, as I can't even modify the recovery actions because it is a "user service" and services.msc returns "The parameter is incorrect".


I wrote my own script to manually find the new service name from sc query start the service via net start <servicename>, but it's hardly elegant, and the service still crashes.


I know the Microsoft bot will come by and tell me to run sfc /scannow and dism, so rest assured I have already tried that. And yes my system is fully up to date (Windows 10 Pro, Version 1803, OS build 17134.285). And subsequently, no, using the refresh/reinstall is not an option as it will likely have no effect other than me having to reinstall and reconfigure all my programs/drivers again only to find the issue persists.


Event 1000, Application Error

Faulting application name: svchost.exe_WpnUserService, version: 10.0.17134.1, time stamp: 0xa38b9ab2
Faulting module name: NotificationController.dll, version: 10.0.17134.165, time stamp: 0xe0385185
Exception code: 0xc0000005
Fault offset: 0x000000000007c686
Faulting process id: 0x46c
Faulting application start time: 0x01d44e4bd223d85c
Faulting application path: C:\WINDOWS\system32\svchost.exe
Faulting module path: C:\Windows\System32\NotificationController.dll
Report Id: 293fd13e-fb95-4408-a9ae-ec680215c0b1
Faulting package full name:
Faulting package-relative application ID:


Event 7032, Service Control Manager

The Service Control Manager tried to take a corrective action (Restart the service) after the unexpected termination of the Windows Push Notifications User Service_67bb9 service, but this action failed with the following error:
An instance of the service is already running.


Other System Info

OS: Windows 10 Pro, Version 1803, OS build 17134.285

Processor: AMD FX 8320 3.50GHz

Chipset: AMD 970

Ram: 12GB

System Type: 64-bit

GPU: Nvidia GTX 970 (Driver Version 398.82)


Any help / ideas would be appreciated. (and Microsoft techs if you're reading, please fix soon).

:)

 

Sevice host windows push notifications system service

found this click on service host ---------right click expand click connected devices right click search on line

Default Behavior
It is starting only if the user, an application or another service starts it in Windows 10 Home 1607, Windows 10 Pro 1607, Windows 10 Education 1607, Windows 10 Enterprise 1607. This service is starting automatically when the operating system starts in Windows
10 Home 1703, Windows 10 Pro 1703, Windows 10 Education 1703, Windows 10 Enterprise 1703, Windows 10 Home 1709, Windows 10 Pro 1709, Windows 10 Education 1709, Windows 10 Enterprise 1709. If Windows Push Notifications User Service fails to load or initialize,
Windows 10 start up proceeds without warnings. However the error details are being logged.

Restore Default Startup Configuration for Windows Push Notifications User Service
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 1607 Home, Windows 10 1607 Pro, Windows 10 1607 Education, Windows 10 1607 Enterprise:

sc config WpnUserService start= demand

For 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:

sc config WpnUserService start= auto

sc start WpnUserService

3. Close the command window and restart the computer.

The WpnUserService service is using the WpnUserService.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.

 

User Notification Service not working

Recently, my Windows Push Notifications User Service (WpnUserService) went haywire. I am unsure of when it started happening, but the service keeps stopping and starting, restarting, and occasionally getting stuck on 'Stopping'. Manually starting the service
doesn't fix this problem permanently, although it does occasionally remain running for a while.

I need some help on how to repair this service. I've already tried sfc /scannow multiple times, so unless there's something about that tool I'm missing, I'm not sure what to do, short of doing a system reset.

 

High Memory Usage by "Service Host: Windows Notifications User Service_3c1f5"

For us to know if it's a faulty or outdated driver, can you send us a screenshot of associated file. Here are the steps:

• Type in Task Manager in the search bar
• Right-click Service Host: Windows Push Notifications User Service_3c1f5
• Click Properties and go to the General tab
• Send us a screenshot of the Properties

We'll wait for your response.