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Uninstall-ADDSDomainController

Module:
ADDSDeployment Module

Uninstalls a domain controller in Active Directory.

Syntax

ADDSDomainControllerUninstall (Default) 

Uninstall-ADDSDomainController
    [-SkipPreChecks]
    [-LocalAdministratorPassword <SecureString>]
    [-Credential <PSCredential>]
    [-DemoteOperationMasterRole]
    [-DnsDelegationRemovalCredential <PSCredential>]
    [-IgnoreLastDCInDomainMismatch]
    [-IgnoreLastDnsServerForZone]
    [-LastDomainControllerInDomain]
    [-NoRebootOnCompletion]
    [-RemoveApplicationPartitions]
    [-RemoveDnsDelegation]
    [-RetainDCMetadata]
    [-Force]
    [-WhatIf]
    [-Confirm]
    [<CommonParameters>]

ADDSDomainControllerUninstallForceRemoval 

Uninstall-ADDSDomainController
    [-SkipPreChecks]
    [-LocalAdministratorPassword <SecureString>]
    [-Credential <PSCredential>]
    [-DemoteOperationMasterRole]
    [-ForceRemoval]
    [-NoRebootOnCompletion]
    [-Force]
    [-WhatIf]
    [-Confirm]
    [<CommonParameters>]

Description

The Uninstall-ADDSDomainController cmdlet uninstalls a domain controller in Active Directory.

Examples

Example 1: Remove AD DS from a domain controller

Uninstall-ADDSDomainController

This command removes AD DS from an additional domain controller in a domain. The user is prompted to set and confirm the local Administrator password prior to completing the removal process.

Parameters

-Confirm

Prompts you for confirmation before running the cmdlet.

Parameter properties

Type:SwitchParameter
Default value:False
Supports wildcards:False
DontShow:False
Aliases:cf

Parameter sets

(All)
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-Credential

Specifies the user name and password that corresponds to the account used to install the domain controller. Use the Get-Credential cmdlet to prompt the user to supply a password in place of an existing System.Management.Automation.PSCredential type. This causes Windows PowerShell to prompt the user to enter credentials using the Windows security login UI.

Parameter properties

Type:PSCredential
Supports wildcards:False
DontShow:False

Parameter sets

(All)
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-DemoteOperationMasterRole

Indicates that forced demotion should continue even if an operations master role is discovered on the domain controller from which AD DS is being removed.

Parameter properties

Type:SwitchParameter
Supports wildcards:False
DontShow:False

Parameter sets

(All)
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-DnsDelegationRemovalCredential

Specifies the account credentials to use when you create or remove the DNS delegation. If you do not specify a value, the account credentials that you specify for the AD DS installation or removal are used to remove the DNS delegation. As an alternative, you can specify the asterisk (*) to prompt the user to enter credentials.

Parameter properties

Type:PSCredential
Default value:None
Supports wildcards:False
DontShow:False

Parameter sets

ADDSDomainControllerUninstall
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-Force

Forces the command to run without asking for user confirmation.

Parameter properties

Type:SwitchParameter
Default value:None
Supports wildcards:False
DontShow:False

Parameter sets

(All)
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-ForceRemoval

Indicates that the cmdlet forces the removal of a domain controller. Use this parameter to force the uninstall of AD DS if you need to remove the domain controller and do not have connectivity to other domain controllers within the domain topology.

Parameter properties

Type:SwitchParameter
Supports wildcards:False
DontShow:False

Parameter sets

ADDSDomainControllerUninstallForceRemoval
Position:Named
Mandatory:True
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-IgnoreLastDCInDomainMismatch

Indicates that Windows PowerShell ignores any inconsistency that it detects with the value that you specify for the LastDomainControllerInDomain parameter. For instance, if you specify LastDomainControllerInDomain but Windows PowerShell detects that there is actually another active domain controller in the domain, you can specify the IgnoreLastDCInDomainMismatch parameter to have Windows PowerShell continue the removal of AD DS from the domain controller despite the inconsistency that it has detected. Similarly, if you do not specify LastDomainControllerInDomain but Windows PowerShell cannot detect that another domain controller is in the domain, you can specify IgnoreLastDCInDomainMismatch to have Windows PowerShell continue to remove AD DS from the domain controller.

Parameter properties

Type:SwitchParameter
Supports wildcards:False
DontShow:False

Parameter sets

ADDSDomainControllerUninstall
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-IgnoreLastDnsServerForZone

Indicates that the cmdlet continues the removal of AD DS despite the fact that the domain controller is the last DNS server for one or more of the Active Directory-integrated DNS zones that it hosts.

Parameter properties

Type:SwitchParameter
Default value:None
Supports wildcards:False
DontShow:False

Parameter sets

ADDSDomainControllerUninstall
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-LastDomainControllerInDomain

Indicates that the computer from which AD DS is being removed is the last domain controller in the domain.

Parameter properties

Type:SwitchParameter
Supports wildcards:False
DontShow:False

Parameter sets

ADDSDomainControllerUninstall
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-LocalAdministratorPassword

Specifies a local administrator account password when AD DS is removed from a domain controller. In earlier releases, where uninstall of AD DS was done using Dcpromo.exe for demotion, the default was to allow an empty password for this setting. In Windows PowerShell, the ADDS Deployment module requires that a non-empty password string value be assigned. If a value is not provided for this parameter, you are prompted to enter a value for the password at the Windows PowerShell prompt. The password value must be a secure string.

If this parameter is not specified, the cmdlet prompts you to enter and confirm a masked password. This is the preferred usage when running the cmdlet interactively. If additionally there are no other arguments specified with the cmdlet, you are prompted to enter a masked password for this parameter but no confirmation of the password entered is made. This is not recommended as it could allow a mistyped password to be configured. Another available advanced option is to use the ConvertTo-SecureString cmdlet and specify the password string inline as unmasked console input, which is also not a recommended security best practice in production deployments.

Parameter properties

Type:SecureString
Default value:<mandatory>
Supports wildcards:False
DontShow:False

Parameter sets

(All)
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-NoRebootOnCompletion

Indicates that the cmdlet restarts the computer upon completion, regardless of success. By default, reboot upon completion occurs when this cmdlet is used and this parameter is omitted. As a general rule, Microsoft support recommends that you not use this parameter except for testing or troubleshooting purposes because once configuration has completed the server will not function correctly as either a member server or a DC until it is rebooted.

Parameter properties

Type:SwitchParameter
Supports wildcards:False
DontShow:False

Parameter sets

(All)
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-RemoveApplicationPartitions

Indicates that this cmdlet removes application partitions during the removal of AD DS from a domain controller.

Parameter properties

Type:SwitchParameter
Supports wildcards:False
DontShow:False

Parameter sets

ADDSDomainControllerUninstall
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-RemoveDnsDelegation

Specifies whether to preserve DNS delegation that point to this DNS server from the parent DNS Zone. If you use this parameter, DNS delegations that point to this server from the parent DNS zone will not be retained after uninstallation of the domain controller. This setting corresponds to the earlier Dcpromo.exe parameter default of /RemoveDNSDelegation:Yes.

Parameter properties

Type:SwitchParameter
Default value:None
Supports wildcards:False
DontShow:False

Parameter sets

ADDSDomainControllerUninstall
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-RetainDCMetadata

Indicates that metadata from the domain controller should be preserved after uninstallation is completed.

Parameter properties

Type:SwitchParameter
Default value:FALSE
Supports wildcards:False
DontShow:False

Parameter sets

ADDSDomainControllerUninstall
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-SkipPreChecks

Indicates that only a base set of validations is performed. This behavior is equivalent to the validations that were performed when using Dcpromo.exe in earlier versions of Windows Server to add a new domain controller. When this switch parameter is set, it specifies that additional preliminary checks should be bypassed. For more information on the scope of these additional preliminary checks that the ADDSDeployment module performs by default when using Windows Server 2012, refer to the table in the section ADPrep and Prerequisite Checking Architecture in AD DS Simplified Administration.

Parameter properties

Type:SwitchParameter
Default value:None
Supports wildcards:False
DontShow:False

Parameter sets

(All)
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet is not run.

Parameter properties

Type:SwitchParameter
Default value:False
Supports wildcards:False
DontShow:False
Aliases:wi

Parameter sets

(All)
Position:Named
Mandatory:False
Value from pipeline:False
Value from pipeline by property name:False
Value from remaining arguments:False

CommonParameters

This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable, -ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.