Delete Failed DCs from Active Directory

How can I delete a failed Domain Controller object from Active Directory?

When you try to remove a domain controller from your Active Directory domain by using Dcpromo.exe and fail, or when you began to promote a member server to be a Domain Controller and failed (the reasons for your failure are not important for the scope of this article), you will be left with remains of the DCs object in the Active Directory. As part of a successful demotion process, the Dcpromo wizard removes the configuration data for the domain controller from Active Directory, but as noted above, a failed Dcpromo attempt might leave these objects in place. Continue reading

Forcibly Removing Active Directory from a DC – Retire a Domain Controller

Dcpromo is the Windows 2000 and Windows Server 2003 GUI interface for promoting a server to the role of being a Domain Controller, and if is already a DC, then dcpromo will be the tool to use to demote it back to being a member server. Dcpromo has a specific set of checks it performs before allowing the process to continue. These requirements change based on whether the server is being promoted or demoted. In this article we will deal with demoting issues. Dcpromo might fail when trying to demote a Domain Controller in some cases. These scenarios include, for example: Continue reading