System Event Notification Service error

Some of our staff are receiving the following error message, which locks them out of their PC's for up to several hours.

"System Event Notification Service service
Please consult your System Administrator"

We have had this error in the past with a very few machines, but after the couple of hours or so, it let them in and the error didn't happen again.

I'm wondering if this is coming in on the heals of the MS patch for Meltdown & Spectre, or any MS update.
netsysadmInternal Systems AdministratorAsked:
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Sean Plemons Kelly, CISSPInformation Systems Security EngineerCommented:
Have you looked in the Event Logs to see if it produced anything there?
netsysadmInternal Systems AdministratorAuthor Commented:
There were no significant event log errors

1.  FailureName      \Driver\WUDFRd
2. The Windows Audio service hung on starting.

I found a fix  (netsh winsock reset catalog) that has been used by many people that has worked, but I always create a restore point before applying any fixes I've never run before.
Do you know how to create a restore point as a standard user, or do I have to log out and in as an administrator?  All our users are standard users.  It would be nice not to have to log in and out if there is a command I can run instead.

netsysadmInternal Systems AdministratorAuthor Commented:
Good morning.

I haven't received a reply to my last comment and my situation gets worse.  We are getting more and more staff with this kind of error, and the only solution right now is to let users leave their PC's on, so they don't have to wait 20 or more minutes to get into the network every morning.

I tried running the "netsh winsock reset catalog" on one of the PC's, but it didn't work.  I've been frantically looking for any solution.  Has anyone run across this error before?

Thank you.
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Sean Plemons Kelly, CISSPInformation Systems Security EngineerCommented:
This TechNet post might be able to help. It sounds like the OP on that one had similar issues to what you're running into, and a few responses down are some troubleshooting steps that might be what you need.

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netsysadmInternal Systems AdministratorAuthor Commented:
I tried one of the solutions in the TechNet post - the one that suggested reinstalling Symantec Endpoint antivirus.  It has worked on the first PC, so I'm hoping it works for the rest.
Thank you for the post.
Sean Plemons Kelly, CISSPInformation Systems Security EngineerCommented:
Author stated that the solution worked.
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