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GPO deleted accidentally

Hello,
I need help on where and how to restore OU that was accidentally deleted from a windows 2003 server enterprise DC.  I previously created an OU and moved several users in that group.  However, the OU is now no longer exist in our DC due to accidently deleted and Shadow Copies weren't turned on.  We do have the DC nightly backup just not sure which file to backup.  Our org. currently have two DCs running and both are replicating.  Please advise how to accomplish this task.

Thank you so much!
0
pawanopensource
Asked:
pawanopensource
3 Solutions
 
Mike KlineCommented:
Your nightly backup should include the system state (hopefully)
So what you will need to do now is what is called an "authoritative restore" for that OU
Take a look at this question I helped with last year
http://www.experts-exchange.com/Software/Server_Software/File_Servers/Active_Directory/Q_24184760.html
Thanks
Mike
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abhijitwaikarCommented:
Yes, you will need to do an "authoritative restore" for that OU.

Check the below link to Performing an Authoritative Restore of Active Directory Objects:
http://technet.microsoft.com/en-us/library/cc779573(WS.10).aspx

Thanks.
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ARK-DSCommented:
Hello,

In case you have the system state backup, follow the article listed by abhijit. But please remember to run the authoritative restore command twice (after a reboot back to DSRM mode). This will retore the group memberships as well.

If you do not have the system state backup, then the only way which is left is to undelete the users that got deleted. This is a time consuming process and needs usage of tools like ldp.exe.

Refer this:
http://support.microsoft.com/kb/840001

Hope this works for you because by default the tombstone life time is 180 days so there is hope :-)

Regards

Arun.
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