Windows could not connect to the System Event Notification Service service.

Anonymous
2010-05-10T21:02:56+00:00

Every so often, 1 in 50, my laptop is very slow to start-up I get the "Please Wait" before the login screen.  Once I do log in I get the error:  

"Failed to connect to a windows service.

Windows could not connect to the System Event Notification Service service. This problem prevents limited users from logging on to the system. As an administrative user, you can review the System Event Log for details about why the service didn't respond."

Aero seems to be disabled also and cannot be fixed without a restart.  This problem is getting to be bothersome and I need to know if it could be hardware related.  Thank you in advance for you help.

Windows for home | Previous Windows versions | Windows update

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Anonymous
2016-12-31T03:10:35+00:00

This works!!! 

 Reset the Winsock Catalog

  1. Open a Command Prompt as an Administrator.
  2. Type “netsh winsock reset” (without quotes) and press Enter.
  3. Restart the computer.

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Anonymous
2012-02-07T18:29:33+00:00

Hello Tim Wilson, PMP,

 Thank you for the response on this.  Since you are on a domain with this issue, please repost this question at the link provided below at the Microsoft TechNet Forums.

Microsoft TechNet Forums:

http://social.technet.microsoft.com/Forums/en-us/categories/

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Anonymous
2010-05-11T19:49:48+00:00

Hi,

Since when are you facing this issue?

Did you make any software or hardware changes to the computer recently?

Check if the System Event Notification Service is running or not. To check for the services

1.      Click on Start

2.      In the start Search box type Services

3.      Right Click on - RUN AS ADMIN

Check if the below mentioned services has the mentioned status and start up type.

System Event Notification Service            Started                 Automatic

Also, check the dependency services that are required for System Restore Service to run.

To check that double click on the service and click on the dependency tab.

For the system being slow you may try to improve the performance by optimizing Windows and check if that helps. Follow the link given below on how to optimize Windows.

Optimize Windows 7 for better performance

http://windows.microsoft.com/en-us/windows7/Optimize-Windows-7-for-better-performance

The aero issue can be resolved by installing or reinstalling the updated graphics card drivers. You may check if any update for the Graphics card is available for your computer from the computer manufacturer.

Refer to:****

Update a driver for hardware that isn't working properly

http://windows.microsoft.com/en-us/windows7/Update-a-driver-for-hardware-that-isnt-working-properly

Update drivers: recommended links

http://windows.microsoft.com/en-US/windows7/Update-drivers-recommended-links

Hope this information is helpful.

Amrita M

Microsoft Answers Support Engineer

Visit our Microsoft Answers Feedback Forum and let us know what you think.

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  1. Anonymous
    2017-09-26T10:11:26+00:00

    I am on a windows 7 hp laptop and i started having this issue after an extremly long windows update and now when i try to log in it says pleas wait untill me screen gose black the when i move my mouse to wake it up it at choos a user and click mine and put in the password and it says welcome (for a veary ling time) the it pops up saying windows canot conect to system event notification service service the only option is ok i hit ok and get a black screen forever and i have to hold the power button to reset it and it dise it agin and agin eventuly it works sometimes but its a pain and takes about an hour of reseting i tryed starting in safe mode and evrything worked fine and so i reset and got the problem agin i did the netsh winsock reset comand in safemode ( only place i could do it) and nothing changed ok im siting at my laptop while typeing this and the error msg was on screen my screen went to sleep whil i was typing and when i woak it up i was on choos a user screen agin i signed in and it worked soo maby wait on the error screen a long time and it will work or maby i got luck idk i would like some help with this pleas

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  2. Anonymous
    2010-11-28T18:19:48+00:00

    I just got the same problems described above on not 1 but 2 computers that I just assembled this summer. I have googled for solutions, but not of them seem to work.

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