Having problems with moving an OU to another one in Windows Server 2008

[Beginner]

Hi dear friends
This is my problem:
I have logged to my account by an administrative previledeges. In fact I'm the administrator, but when I try to move an OU to another OU I receive the ACCESS DENIED warning .
Is it related to GPO settings or something related to it?
I was wandering if you could help me to find out what the problem is.
Thanks for your attention
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• تفاوت Windows Server 2008 R2 با Windows Storage server 2008 R2
• Migrating DHCP from Windows 2000 Server/Windows Server 2003 to Windows Server 2008
• Installing MOSS 2007 on Windows Server 2008 and SQL Server 2008
• In-Place Upgrade from Windows Server 2003 Domain Controller to Windows Server 2008

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[greatcyrus]

آيا دامين ادمين هستي؟

[Beginner]

Thanks dear Saeid for your attention, but I found the answer. I found it informative. I hope it helps other members

Remove Protection Against Accidental Organizational Unit Deletion
Updated: January 7, 2010
Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2
You can use this procedure to remove the following access control entries (ACEs):

• On the organizational unit (OU) for which you are removing protection, remove explicit Deny ACEs for the Delete and Delete Subtree advanced permissions for the Everyone group.
• On the parent container of the OU for which you are removing protection, remove an explicit Deny ACE for the Delete All Child Objects permission for the Everyone group.

This removes protection that prevents an OU from accidental deletion. Consequently, you may have to remove these permissions to be able to perform bulk deletions of objects in Active Directory.
To add the protection back again, you can reselect the Deny check boxes for the Delete and Delete Subtree advanced permissions for the Everyone group for the OU and the Delete All Child Objects permission for the Everyone group on the parent container. For more information, see Protect an Organizational Unit from Accidental Deletion.
Membership in the Domain Admins group, or equivalent, is required to complete this procedure.
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, and then click Properties.
• In OU Properties, click the Security tab, and then click Advanced.
• In Permission Entries, select the Deny entry for the Everyone group, and then click Remove.
• Click OK to close the Advanced Security Settings, and then click OK to close OU Properties.
• Second, clear permissions on the parent container of the OU for which you want to remove protection. To do this, right-click the parent container, and then click Properties.
• In ContainerProperties, click the Security tab.
• In Group or user names, select the Everyone group, and then clear the Deny check box for Delete All Child Objects, and then click OK to close Container Properties.
  
  Best Regards