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Need help removing a 2008 R2 DC

Posted on 2014-02-25
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Last Modified: 2014-02-27
I trying to remove a DC so I can rebuild it.  The first time I ran DCpromo it failed stating it couldn't transfer the Operations Master.  I removed DNS from it and that solved that problem.  Now it states "That no other AD DC's can be contacted"  Do I want to proceed anyway?

I previously ran DCDiag /v and all tests passed except NCSecDesc.

The other DC is working fine and all the FSMO roles have been transferred.

How should I proceed?
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Question by:J.R. Sitman
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Expert Comment

by:Paul MacDonald
ID: 39885852
If the other DCs can't be contacted, they may keep information in AD about the DC that's (now) missing.  You can clean that up, but it's not an ideal situation.

I would re-install DNS and give the DCPromo another try.  If you're still not successful, you can proceed as you are, kill the DC, and manually remove any traces from AD after that.
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Author Comment

by:J.R. Sitman
ID: 39885974
Added DNS back and it failed like before.  I'll proceed with the uninstall
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Paul MacDonald earned 500 total points
ID: 39886049
Best of luck!  I've appended some links that may prove useful if you have to manually remove the DC from AD.

How do I remove a dead DC from a 2008R2 level domain.

Forcing the Removal of a Domain Controller

Complete Step by Step to Remove an Orphaned Domain Controller
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Author Closing Comment

by:J.R. Sitman
ID: 39893514
Thanks for the links.  It is now removed.
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Expert Comment

by:Paul MacDonald
ID: 39893729
Very happy to have helped.
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