Critical Windows Updates are bypassing my GPO and rebooting the server

Hi All,

Over the past few days our 2008 Terminal Server has rebooted itself during work hours. Both times the event logs have alerted us to Critical Windows updates being installed prior to the reboot so i can only imagine this is the cause.

I have a network wide GPO in place on all Servers that stops windows updates being downloaded and installed without approval. But some are still getting through, is there an option to stop ciritcal updates being installed?
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kevinhsiehConnect With a Mentor Commented:
Are you using WSUS? Do any of your WSUS approved updates have an installation deadline? An installation deadline would cause this behavior.
Kruno DžoićSystem EngineerCommented:
I don't use 'automatic windows update' on Servers, Servers are updated manually , only then i have total control.

But your way is also good, you must check your GP settings and check what GP are applied on Server with gpresult command
ncomperAuthor Commented:
Thanks, hit the nail on the head. WSUS was the culprit.
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