Sysadmins of the North

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“A domain rename operation is already in progress”

When promoting a Windows Server 2012 R2 to a Domain Controller failed…

The other day, when I attempted to add a newly installed Active Directory to become the slave domain controller of a master, the error message “A domain rename operation is already in progress” was displayed. Promoting the Windows Server 2012 R2 server to a Domain Controller failed.

I was sure I never attempted to rename the original domain…

Assuming a domain rename operation was in progress (why?!), I ended that operation with rendom:

C:\>rendom /end
The operation completed successfully.

After this operation, I could add my new slave domain controller.


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  1. Anonymous

    Thk, a lot !!

  2. Clinton Johnson

    OMG! You are amazing and wonderful! Thank you! Thank you! That was perfect!

  3. Vazha Gelashvili

    Thank you so much!
    I have a problem with contacting domain called and I want to rename it to because old domain name is single labeled and that’s why I can’t join it.Then I started renaming operation and I have got error about unfinished rename operation.
    So,you helped me very much! thanks again!

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