How can I tell which containers link to a Group Policy?

Start the Active Directory Users and Computers snap-in (Start - Programs - Administrative Tools - Active Directory Users and Computers)

Right click on a container which links to the group policy you wish to check

Select the 'Group Policy' tab

Select the 'Links' tab

Select the domain you wish to search for the group policy and click 'Find Now'

A list of all containers linking to the Group Policy will be shown in the result pane
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