Removing a Computer From a Domain

You can remove workstations, backup domain controllers, and member servers from a domain--but you cannot remove the primary domain controller until you promote a backup domain controller to a PDC.

When you remove a computer running Windows NT Workstation or Windows NT Server as a member server from a domain served by a SunLink Server domain controller, use Windows NT Server Manager to delete the computer's account from the directory database so that the computer cannot participate in domain security.

After a computer account has been removed from the domain, a user of the computer must move the computer to a new workgroup or domain using the Network option in the Windows NT Server Manager tool.

To remove a native Windows NT backup domain controller from a domain, you must delete the computer account and reinstall Windows NT Server or Windows NT Workstation on that computer, indicating the new domain. Do not continue to use a backup domain controller that has been removed from a domain until you have reinstalled the operating environment software. For a SunLink Server backup domain controller, however, you do not need to reinstall the software.