GPO is not working after upgrading Active Directory to Windows 2008 R2

Dear All,

I upgrade my Active Directory from windows 2003 to windows 2008 R2, now I have two domain controllers, windows 2008 and windows 2003. The windows 2008 DC have all FSMO roles now.

Almost, everything is working fine except some group policy which they are not applied now.
So I need your help to upgrade the GPO to windows 2008 R2.

Thanks
Arabsoft_SecurityAsked:
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AwinishConnect With a Mentor Commented:
Have you run adprep /domainprep /gpprep command while upgrading domain controller to 2k8.

This cmd is required to update permission on GPO,sometime adprep /domainprep is enough but this command requires to be run while upgrading or you can run now.

You can run gpotool.exe & can see the health of GPO's & then you can track with the error in event log.

You can use userenv logging the best way to find the cause for GPO not getting applied.

http://social.technet.microsoft.com/Forums/en/winservergen/thread/224c95bc-e6b3-4b66-82e1-22de625b7dc6

http://blogs.technet.com/b/askds/archive/2008/11/11/understanding-how-to-read-a-userenv-log-part-1.aspx 
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KenMcFCommented:
Are you getting any errors?
When you updated the schema did you run adprep /gpprep?

Is it all computers that the GPOs do not work on or just the new 2008 servers?

http://www.petri.co.il/windows-server-2008-adprep.htm
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