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Remove-GPPrefRegistryValue

Remove-GPPrefRegistryValue

Removes one or more Registry preference items from either Computer Configuration or User Configuration in a GPO.

Syntax

Remove-GPPrefRegistryValue -Guid <Guid> -Context {<User> | <Computer>} -Key <string> [-Domain <string>] [-Order <int>] [-Server <string>] [-ValueName <string>] [-Confirm] [-WhatIf] [<CommonParameters>]

Remove-GPPrefRegistryValue [-Name] <string> -Context {<User> | <Computer>} -Key <string> [-Domain <string>] [-Order <int>] [-Server <string>] [-ValueName <string>] [-Confirm] [-WhatIf] [<CommonParameters>]

Detailed Description

The Remove-GPPrefRegistryValue cmdlet removes one or more Registry preference items from either Computer Configuration or User Configuration in a GPO. You must specify the Context parameter (User or Computer) to indicate whether to remove the Registry preference item from Computer Configuration or User Configuration. . You can specify the GPO by its display name or by its GUID.

You can specify either a key or a value:
--If you specify a key, all Registry preference items that configure that registry key or any of its (first-level) values are removed from the specified configuration in the GPO. Registry preference items that configure subkeys of that key (or their values) are not affected. For a key, specify the Key parameter without the ValueName parameter.
--If you specify a value, all Registry preference items that configure that registry value are removed from the specified configuration in the GPO. For a value, specify the Key parameter without the ValueName parameter.

This cmdlet can take input from the pipeline:
--You can pipe GPO objects to this cmdlet to remove a specified Registry preference item from one or more GPOs.
--You can pipe PreferencRegistrySetting objects to this cmdlet to remove one or more Registry preference items from a specified GPO.

Parameters

-Context <GpoConfiguration>

Specifies whether the Registry preference item (or items) are removed from Computer Configuration or User Configuration in the specified GPO. You must specify either User or Computer.

The following values are permitted for this object type.

  • User

  • Computer

Attributes

Name Value

Required?

true

Accept wildcard characters?

false

Accept Pipeline Input?

true (ByPropertyName)

Position?

named

-Domain <string>

Specifies the domain for this cmdlet. You must specify the fully qualified domain name (FQDN) of the domain (for example: sales.contoso.com).

For the Remove-GPPrefRegistryValue cmdlet, the GPO from which to remove the Registry preference item (or items) must exist in this domain.

If you do not specify the Domain parameter, the domain of the user that is running the current session is used. (If the cmdlet is being executed from a computer startup or shutdown script, the domain of the computer is used.) For more information, see the Notes section in the full Help.

If you specify a domain that is different from the domain of the user that is running the current session (or, for a startup or shutdown script, the computer), a trust must exist between that domain and the domain of the user (or the computer).

You can also refer to the Domain parameter by its built-in alias, "domainname". For more information, see about_Aliases.

Attributes

Name Value

Required?

false

Accept wildcard characters?

false

Accept Pipeline Input?

true (ByPropertyName)

Position?

named

-Guid <Guid>

Specifies the GPO from which to remove the Registry preference item by its globally unique identifier (GUID). The GUID uniquely identifies the GPO.

You can also refer to the Guid parameter by its built-in alias, "id". For more information, see about_Aliases.

Attributes

Name Value

Required?

true

Accept wildcard characters?

false

Accept Pipeline Input?

true (ByPropertyName)

Position?

named

-Key <string>

Specifies a registry key for which to remove one or more Registry preference items; for example, "HKCU\Control Panel\Colors".

You can specify any of the following registry hives: HKEY_CLASSES_ROOT (HKCR), HKEY_CURRENT_USER (HKCU), HKEY_LOCAL_MACHINE (HKLM), HKEY_USERS (HKU), and HKEY_CURRENT_CONFIG (HKCC). Any of these hives can be specified for Registry preference items in both Computer Configuration and User Configuration.

The Key parameter can be specified with or without the ValueName parameter:
--If the ValueName parameter is specified, all Registry preference items that configure the registry value are removed.
--If the ValueName parameter is not specified, all Registry preference items that configure the registry key and any of its (first-level) values are removed.

You can also refer to the Key parameter by its built-in alias, "FullKeyPath". For more information, see about_Aliases.

Attributes

Name Value

Required?

true

Accept wildcard characters?

false

Accept Pipeline Input?

true (ByPropertyName)

Position?

named

-Name <string>

Specifies the GPO from which to remove the Registry preference item by its display name.

The display name is not guaranteed to be unique in the domain. If another GPO with the same display name exists in the domain an error occurs. You can use the Guid parameter to uniquely identify a GPO.

You can also refer to the Name parameter by its built-in alias, "displayname". For more information, see about_Aliases.

Attributes

Name Value

Required?

true

Accept wildcard characters?

false

Accept Pipeline Input?

true (ByPropertyName)

Position?

1

-Order <int>

Specifies the order in which a Registry preference item is processed relative to other Registry preference items in the GPO when the GPO is applied on a client computer.

Attributes

Name Value

Required?

false

Accept wildcard characters?

false

Accept Pipeline Input?

false

Position?

named

-Server <string>

Specifies the name of the domain controller that this cmdlet contacts to complete the operation. You can specify either the fully qualified domain name (FQDN) or the host name. For example:

FQDN: DomainController1.sales.contoso.com
Host Name: DomainController1

If you do not specify the name by using the Server parameter, the PDC emulator is contacted.

You can also refer to the Server parameter by its built-in alias, "dc". For more information, see about_Aliases.

Attributes

Name Value

Required?

false

Accept wildcard characters?

false

Accept Pipeline Input?

false

Position?

named

-ValueName <string>

Specifies the name of a registry value for which to remove all Registry preference items. If you specify the ValueName parameter, you must also specify the Key parameter.

Attributes

Name Value

Required?

false

Accept wildcard characters?

false

Accept Pipeline Input?

true (ByPropertyName)

Position?

named

-Confirm <SwitchParameter>

Prompts you for confirmation before executing the command.

Attributes

Name Value

Required?

false

Accept wildcard characters?

false

Accept Pipeline Input?

false

Position?

named

-WhatIf <SwitchParameter>

Describes what would happen if you executed the command without actually executing the command.

Attributes

Name Value

Required?

false

Accept wildcard characters?

false

Accept Pipeline Input?

false

Position?

named

-CommonParameter

This cmdlet supports the common parameters: -Verbose, -Debug, -ErrorAction, -ErrorVariable, -OutBuffer, and -OutVariable. For more information, see About Common Parameter

Input and Return Types

The input type is the type of the objects that you can pipe to the cmdlet. The return type is the type of the objects that the cmdlet emits.

Input Type

Microsoft.GroupPolicy.Gpo, Microsoft.GroupPolicy.PreferenceRegistrySetting. This cmdlet takes a GPO or a PreferenceRegistrySetting object as input. You can pipe in one or more PreferenceRegistrySetting objects (for example, from Get-GPPrefRegistryValue) to remove one or more Registry preference items from a specified GPO. You can pipe in one or more GPO objects (for example, from Get-GPO) to remove a specified Registry preference item from each GPO. Collections that contain GPOs from different domains are not supported.

Return Type

Microsoft.GroupPolicy.Gpo. Remove-GPPrefRegistryValue returns the GPO from which the Registry preference item (or items) has been removed.

Notes


  • You can use the Domain parameter to explicitly specify the domain for this cmdlet.

    If you do not explicitly specify the domain, the cmdlet uses a default domain. The default domain is the domain that is used to access network resources by the security context under which the current session is running. This domain is typically the domain of the user that is running the session. For example, the domain of the user who started the session by opening Windows PowerShell from the Program Files menu, or the domain of a user that is specified in a runas command. However, computer startup and shutdown scripts execute under the context of the LocalSystem account. The LocalSystem account is a built-in local account, and it accesses network resources under the context of the computer account. Therefore, when this cmdlet is executed from a startup or shutdown script, the default domain is the domain to which the computer is joined.


Examples

EXAMPLE 1

C:\PS>

Remove-GPPrefRegistryValue -Name TestGPO -Context User -Key "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ExampleKey" -ValueName ValueOne



DisplayName      : TestGPO

DomainName       : contoso.com

Owner            : CONTOSO\Domain Admins

Id               : 92f79f6c-61ce-47d9-8dc6-f78c5cea93ac

GpoStatus        : AllSettingsEnabled

Description      :

CreationTime     : 2/28/2009 5:15:04 PM

ModificationTime : 2/28/2009 5:15:32 PM

UserVersion      : AD Version: 5, SysVol Version: 5

ComputerVersion  : AD Version: 0, SysVol Version: 0

WmiFilter        :

                        

Description

-----------

This command removes all Registry preference items that configure the registry value "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ExampleKey ValueOne" from User Configuration in the "TestGPO" GPO.

EXAMPLE 2

C:\PS>

Remove-GPPrefRegistryValue -Name TestGPO -Context Computer -Key "HKLM\SOFTWARE\Microsoft\ExampleKey"



DisplayName      : TestGPO

DomainName       : contoso.com

Owner            : CONTOSO\Domain Admins

Id               : 92f79f6c-61ce-47d9-8dc6-f78c5cea93ac

GpoStatus        : AllSettingsEnabled

Description      :

CreationTime     : 2/28/2009 5:15:04 PM

ModificationTime : 2/28/2009 5:15:32 PM

UserVersion      : AD Version: 5, SysVol Version: 5

ComputerVersion  : AD Version: 0, SysVol Version: 0

WmiFilter        :

                        

Description

-----------

This command removes Registry preference items that configure any (first-level) values under the registry key "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ExampleKey" or the key itself from Computer Configuration in the "TestGPO" GPO.

EXAMPLE 3

C:\PS>

Get-GPO -All | Remove-GPPrefRegistryValue -Context User -Key "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ExampleKey" -ValueName ValueOne -ErrorAction SilentlyContinue



DisplayName      : TestGPO

DomainName       : contoso.com

Owner            : CONTOSO\Domain Admins

Id               : a83ad1da-9fd4-4005-96b1-7e98042d04de

GpoStatus        : AllSettingsEnabled

Description      :

CreationTime     : 2/28/2009 5:21:05 PM

ModificationTime : 2/28/2009 5:21:17 PM

UserVersion      : AD Version: 5, SysVol Version: 5

ComputerVersion  : AD Version: 0, SysVol Version: 0

WmiFilter        :



DisplayName      : TestGPO-1

DomainName       : contoso.com

Owner            : CONTOSO\Domain Admins

Id               : 277eafe8-5dbf-4e3f-86dc-557eee14d0a4

GpoStatus        : AllSettingsEnabled

Description      :

CreationTime     : 2/28/2009 2:35:24 PM

ModificationTime : 2/28/2009 5:21:17 PM

UserVersion      : AD Version: 0, SysVol Version: 0

ComputerVersion  : AD Version: 0, SysVol Version: 0

WmiFilter        :

                        

Description

-----------

This command removes any Registry preference items that configure the registry value "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ExampleKey ValueOne" from User Configuration for all GPOs in the domain. It returns each GPO from which at least one Registry preference item is removed.

Note: The Remove-GPPrefRegistryValue returns a non-terminating error for each GPO that does not have a Registry preference item associated with the specified registry value. In this command, these error messages are suppressed by setting the ErrorAction parameter to SilentlyContinue (-ErrorAction SilentlyContinue). For more information about the ErrorAction parameter, see about_CommonParameters.

See Also

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