Remove-ItemProperty

Deletes the property and its value from an item.
Remove-ItemProperty [-Path*] <String[]> [-Name*] <String[]> [-Credential [<PSCredential>]] [-Exclude [<String[]>]][-Filter [<String>]] [-Force] [-Include [<String[]>]] [-Confirm] [-WhatIf] [-UseTransaction [<SwitchParameter>]][<CommonParameters>]
Remove-ItemProperty [-Name*] <String[]> [-Credential [<PSCredential>]] [-Exclude [<String[]>]] [-Filter [<String>]][-Force] [-Include [<String[]>]] -LiteralPath* <String[]> [-Confirm] [-WhatIf] [-UseTransaction[<SwitchParameter>]] [<CommonParameters>]

The Remove-ItemProperty cmdlet deletes a property and its value from an item. You can use it to delete registry values and the data that they store.

Parameters
-Credential [<PSCredential>]

Specifies a user account that has permission to perform this action. The default is the current user.

Type a user name, such as User01 or Domain01User01, or enter a PSCredential object, such as one generated by the Get-Credential cmdlet. If you type a user name, this cmdlet prompts you for a password.

This parameter is not supported by any providers installed with Windows PowerShell.

-Exclude [<String[]>]

Specifies items that this cmdlet omits. The value of this parameter qualifies the Path parameter. Enter a path element or pattern, such as *.txt. Wildcard characters are permitted.

-Filter [<String>]

Specifies a filter in the format or language of the provider. The value of this parameter qualifies the Path parameter. The syntax of the filter, including the use of wildcard characters, depends on the provider. Filters are more efficient than other parameters, because the provider applies them when it retrieves the objects instead of having Windows PowerShell filter the objects after they are retrieved.

-Force [<SwitchParameter>]

Forces the cmdlet to remove a property of an object that cannot otherwise be accessed by the user. Implementation varies from provider to provider.

-Include [<String[]>]

Specifies items to delete. The value of this parameter qualifies the Path parameter. Enter a path element or pattern, such as *.txt. Wildcard characters are permitted.

-LiteralPath <String[]>

Specifies a path of the item property. The value of the LiteralPath parameter is used exactly as it is typed. No characters are interpreted as wildcard characters. If the path includes escape characters, enclose it in single quotation marks. Single quotation marks tell Windows PowerShell not to interpret any characters as escape sequences.

-Name <String[]>

Specifies the names of the properties to remove.

-Path <String[]>

  • This value is required
  • Accepts pipeline input ByValue

Specifies the path of the item whose properties are being removed. Wildcard characters are permitted.

-Confirm [<SwitchParameter>]

  • Default value is false

Prompts you for confirmation before running the cmdlet.Prompts you for confirmation before running the cmdlet.

-WhatIf [<SwitchParameter>]

  • Default value is false

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

-UseTransaction [<SwitchParameter>]

  • Default value is false

Includes the command in the active transaction. This parameter is valid only when a transaction is in progress.

<CommonParameters>

This cmdlet supports the common parameters: Verbose, Debug,ErrorAction, ErrorVariable, WarningAction, WarningVariable,OutBuffer, PipelineVariable, and OutVariable.

Inputs

System.String

You can pipe a string that contains a path, but not a literal path, to this cmdlet.

Outputs

None

This cmdlet does not return any output.

Examples
  1. Delete a registry value:
    PS C:> Remove-ItemProperty -Path "HKLM:SoftwareSmpApplication" -Name "SmpProperty"
    

    This command deletes the SmpProperty registry value, and its data, from the SmpApplication subkey of the HKEY_LOCAL_MACHINESoftware registry key.

    Because the command is issued from a file system drive (PS C:>), it includes the fully qualified path of the SmpApplication subkey, including the drive, HKLM:, and the Software key.

    It uses the Name parameter to identify the registry value that is being deleted.

  2. Delete a registry value from the HKCU location:
    PS C:> Set-Location HKCU:SoftwareMyCompanyMyApp
    PS HKCU:SoftwareMyCompanyMyApp>  Remove-ItemProperty -Path . -Name "Options" -Confirm
    

    These commands delete the Options registry value, and its data, from the MyApp subkey of HKEY_CURRENT_USERSoftwareMyCompany.

    The first command uses the Set-Location cmdlet to change the current location to the HKEY_CURRENT_USER drive (HKCU:) and the SoftwareMyCompanyMyApp subkey.

    The second command uses Remove-ItemProperty to remove the Options registry value, and its data, from the MyApp subkey. Because Path is required, the command uses a dot (.) to indicate the current location. It uses Name to specify which registry value to delete. It uses the Confirm parameter to request a user prompt before deleting the value.

  3. Remove a registry value by using the pipeline:
    PS C:> Get-Item -Path HKLM:SoftwareMyCompany | Remove-ItemProperty -Name NoOfEmployees
    

    This command deletes the NoOfEmployees registry value, and its data, from the HKLMSoftwareMyCompany registry key.

    The command uses the Get-Item cmdlet to get an item that represents the registry key. It uses a pipeline operator (|) to send the object to Remove-ItemProperty. Then, it uses the Name parameter of Remove-ItemProperty to specify the name of the registry value.

Additional Notes
 You can also refer to Remove-ItemProperty by its built-in alias, rp. For more information, see about_Aliases.
 In the Windows PowerShell Registry provider, registry values are considered to be properties of a registry key 
 or subkey. You can use the ItemProperty cmdlets to manage these values.
 Remove-ItemProperty is designed to work with the data exposed by any provider. To list the providers available 
 in your session, type Get-PSProvider. For more information, see about_Providers.
Related Links

Get-Item
Clear-ItemProperty
Copy-ItemProperty
Get-ItemProperty
Move-ItemProperty
New-ItemProperty
Remove-Item
Rename-ItemProperty
Set-ItemProperty
Set-Location