Failed to connect to a windows service error message at startup of Windows 7 SP1

Hello and Good Evening Everyone,

             I wish to help a friend to resolve an error message which appears on the desktop each time Windows 7 SP1 loads.  The contents of the error reads as follows:  There is a window with a title of Failed to connect to a windows service.  The body of the window indicates that windows could not connect to the System Event Notification Service service.  This problem prevents standard 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.  As a follow up to this error message, I did notice the desktop environment takes a while to load up in addition to never being able to log off or shut down which results in a required manual shutdown using the power button.  I think there might be connection here, but, not entirely sure about this.  

              On a side note, here is some brief detailed information about this laptop just in case it is needed.  The laptop is a Dell Inspiron (Model: N4010).  The operating system is Windows 7 Home Premium SP1.  If more information is needed, please feel free to let me know and it will be furnished right away.

               Thank you

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"As an administrative user, you can review the System Event Log for details about why the service didn't respond"
And what were the details?

Can you access services.msc to see if System Event Notification Service is on?

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GMartinAuthor Commented:
Hello and Good Evening,

           I am happy to say his situation is now resolved after using a variety of strategies.  I carried out a comprehensive cleanup of this laptop using CCleaner and Malwarebytes.  Both programs did detect issues which was resolved.  I also used the msconfig utility to uncheck unneeded and unrecognized programs within the Startup tab and Services tab.  Finally, Windows 7 SP1 had 64 necessary updates which were automatically downloaded, installed and configured on the laptop.  All of these troubleshooting strategies went well and without issues.   Consequently, this laptop is running smoothly now without error messages and shut down concerns.

           Thank  you for your feedback given in reply to my question.

Glad to have helped.
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Windows 7

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