Failed to connect to the System Event Notification Service

Solution 1:

I had the same problem. The message "failed to connect to the windows notification service", lost Aero Desktop Theme, several minutes to boot to the desktop.
I had tried everything on this blog. The only thing that worked was when I uninstalled the KB2952664 update.

Solution 2:

This issue magically went away when I issued new machines to our end-users. I tried almost everything I could think of, and everything you thought of. One of those weird problems that went unsolved. First in my career.

Thank you very much for your insight and help. I really do appreciate all of the hard work!

Solution 3:

I had this "Windows could not connect to the system event notification service" problem and forced the computer to turn off. I then restarted it and logged in as Admin. When I was in there, I noticed the OS wanted me to turn it off to install updates. After that was done I could use the regular account again. It seems the OS had prepared for this update and touched some necessary file so it didn't work correctly and required of me to allow the update through the Admin account.

Solution 4:

I have same issue in my office too.

I google the fix on web, did all the suggestions but still cannot solve the problem.

Finally, I found the solution. We uninstall Symantec Endpoint Protection (SEP) 12 and upgrade to SEP 14, then all the computer fixed.

Hope it can help.

Solution 5:

as others said, the fix was removing KB2952664 update. i couldnt find KB2952664 update in the installed updates, so i had to install it first and uninstall it afterwards. that fixed it!