Demotion Operation

Applies To: Windows Server 2008, Windows Server 2008 R2

The new options in the following table are available for unattended removal of Active Directory Domain Services (AD DS). Options that are new in Windows Server 2008 are shown in bold type.

Parameter	Possible values	Default value	Description
/AdministratorPassword	admin_password		Sets the local administrator password for the computer during removal of a domain controller.
/DemoteFSMO	Yes | No	No	Indicates that a forced removal should continue even if an operations master (also known as flexible single master operations or FSMO) role is held by the domain controller.
/DNSDelegationPassword	Password | *		Specifies the password for the user name (the account credentials) that is used to create or remove the Domain Name System (DNS) delegation. Specify * to prompt the user to enter credentials.
/DNSDelegationUserName	user_name		Specifies the user name to be used when the DNS delegation is created or removed. If you do not specify a value, the account credentials that you specify for the installation or removal of AD DS are used for the DNS delegation.
/IgnoreIsLastDcInDomainMismatch	Yes | No	No	Specifies whether to continue the demotion of the domain controller when either the switch /IsLastDCInDomain:Yes is specified and Dcpromo detects that there is actually another active domain controller in the domain or when the switch /IsLastDCInDomain:No is specified and Dcpromo cannot contact any other domain controller in the domain.
/IgnoreIsLastDNSServerForZone	Yes | No	No	Specifies whether to continue the demotion despite the fact that the domain controller is the last DNS server for one or more Active Directory–integrated DNS zones that it hosts.
/IsLastDCInDomain	Yes | No	No	Specifies whether the computer that is being demoted is the last domain controller in the domain.
/Password	Password | *		Specifies the password corresponding to the user name (account credentials) that is used to promote the domain controller. Specify * to prompt the user to enter credentials.
/RebootOnCompletion	Yes | No	Yes	Specifies whether to restart the computer upon completion, regardless of success.
/RebootOnSuccess	Yes | No| NoAndNoPromptEither	Yes	Specifies whether to restart the computer upon successful completion of an operation.
/RemoveApplicationPartitions	Yes | No	No	Specifies whether to remove application directory partitions during removal of a domain controller.
/RemoveDNSDelegation	Yes | No	Yes	Specifies whether to remove DNS delegations that point to this DNS server from the parent DNS zone.
/RetainDCMetadata	Yes | No	No	Retains domain controller metadata in the domain after removal of AD DS to allow a delegated administrator to remove AD DS from an RODC.
/UserDomain	domain_name		Specifies the domain name for the user name (account credentials) that is used for promoting a domain controller.
/UserName	Domain\user_name		Specifies the user name (account credentials) that is used for promoting a domain controller. We recommend that you specify the account credentials in the domain\user_name format.