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

Anonymous

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.

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Anonymous

This works!!!

Reset the Winsock Catalog

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

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Answer accepted by question author

Anonymous

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

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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178 additional answers

Anonymous

2011-11-18T11:02:24+00:00

IMPORTAND UPDATE!

I went on installing software and drivers as i mentioned in my last post. (install; restart; restart; test audio plug; restart). So far I installed all drivers successfully, but then I installed Adobe CS5 Web Premium (all programs with it ) and acrobat reader 9 professional. This resulted again in the start-up error of the audio and the loss of the aero theme! This made me feel like a fool because adobe obviously has some sort of audio **** in it! Luckily I could use a restore point to undo the harm. This made it unfortunately impossible to check what part of adobe creates the problem. Next I will only install Photoshop, illustrator an acrobat reader. If this gives a problem, then you will read it.

Best regards,

Jeroen
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Anonymous

2011-11-17T18:06:11+00:00

Hello all,

IT MIGHT BE DOUBLE INSTALlED AUDIO DRIVERS!!! please read on:

After my last post I did not intend to comeback here as a fresh installed system is not expected to have issues.... But after having an almost complete reinstall of all programs, I inserted my earphones. Just for a test, because what could possibly go wrong an a new installed system? .... the result was horrible: the "Failed to connect to a windows service" message appeared!!!!!!!

Therefore I decided to continue in a systimatic way:

-instal w7

-restart

-test earphone (plug in and play some sound)

-restart (this gave no error)

-instal the audio driver (something from IDT or so)

-restart from the prompt

-restart (just to be sure)

-test earphone (plug in and play some sound)

-restart (this gave no error)

-instal the graphic cart driver (NVIDIA Quadro FX 880M version 8.17.12.6883)

-restart from the prompt

-restart (just to be sure)

-test earphone (plug in and play some sound)

-restart (The error appeared!!!)

Therefore I uninstalled everything from NIVIDIA on my pc. That is: from the device manager and from the "uninstall a program". In the later I found that NIVIDIA also installed an audio driver! That means that there are TWO installed on my system....Where is that good for?

-deinstal driver and software

-restart from the prompt

-restart (just to be sure)

-test earphone (plug in and play some sound)

-restart (this gave no error!!!!!!!!)

From here I needed to reinstall windows again because I screwed up with an older driver of the video cart. So I reinstalled windows, the IDT audio driver and the video cart without the NIVIDIA audio driver. And it works! :D I am so happy now ;)

Thus most probably the problem exists due to a double installed audio driver! (it is most probably as my computer is not completely installed jet with all its programs. This is also why I cannot do a proper spell check on this text and why I must apologize form my bad English because I am dyslexic )

chears,

Jeroen
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