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How to delete a protected OU in Active Directory - Virtually Impossible
Taken from http://technet.microsoft.com/en-us/library/cc736842(v=ws.10).aspx To remove protection that prevents an OU from accidental deletion: Log on to the computer as a member of the Domain Admins group. Open Active Directory Users and Computers. Click View, and then click Advanced Features. First, clear permissions on the OU for which you want to remove protection. To do this, right-click the OU, …