GPO Network Provider for hardened UNC Path (KB3004375)
The security update KB3000483 (included in KB3004375 ) requires a group policy change to be performed in order to protect against the vulnerability described in the bulletin ( MS15-011 ). If you would like to activate now the GPO " Computer Configuration/Administrative Templates/Network/Network Provider " and you missing this setting in the console? Are you working with a domain that uses the Central Store? If so, when you're editing a group policy with the snapin, the Administrative Templates section will say "Policy definitions (ADMX files) retrieved from the central store" at the end of it. If that's the case the update includes %SystemRoot%\PolicyDefinitions\NetworkProvider.admx and %SystemRoot%\PolicyDefinitions\YOURLANGUAGE\NetworkProvider.adml files that need to be copied to the Central Store ( SYSVOL\YOURDOMAIN\Policies\PolicyDefinitions , etc.) before the editor will pick up on them. Good luck!