Yesterday, everything was fine. I didn't install anything, add any device or changed any setting that I can recall. I shut the system off cleanly and went to sleep.

Obviously, that means my fully updated copy of Windows 7 Professional fails to log me in today. After successfully entering my credential, I am greeted by the following error message:

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

Clicking okay makes the message go away... and that's it. I had to shut off the system to try again.

Yes, after reboot I had the same issue.

Yes, I can log in just fine in safe mode.

Yes, I have looked into the event log. Nothing interesting that I could see, except an event log entry stating the System Event Notification Service did enter the running mode successfully.


What god did I anger and what can I do to mollify him and regain access to my computer?

  • I recognize that emoticon from FAO. :) – JNK Sep 1 '10 at 10:20

From an administrative cmd prompt run netsh winsock reset.


I did nothing to cause the issue and nothing was required to be done to fix the error.

Just after I posted this question, I tried rebooting the system again and this time it logged me in just fine.

I'm sorry, Googlers, I'm as stumped as you are.

  • This is not an answer, rather a comment or an edit to your question. I suggest you change it. – Xavierjazz Sep 1 '10 at 14:07
  • 2
    @Xavier, I think "Try rebooting again, it'll help although I don't know why" qualifies as an answer. – badp Sep 1 '10 at 16:28

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