Clear-ItemProperty

Clears the value of a property but does not delete the property.

Syntax

Clear-ItemProperty
     [-Path] <String[]>
     [-Name] <String>
     [-PassThru]
     [-Force]
     [-Filter <String>]
     [-Include <String[]>]
     [-Exclude <String[]>]
     [-Credential <PSCredential>]
     [-WhatIf]
     [-Confirm]
     [-UseTransaction]
     [<CommonParameters>]
Clear-ItemProperty
     -LiteralPath <String[]>
     [-Name] <String>
     [-PassThru]
     [-Force]
     [-Filter <String>]
     [-Include <String[]>]
     [-Exclude <String[]>]
     [-Credential <PSCredential>]
     [-WhatIf]
     [-Confirm]
     [-UseTransaction]
     [<CommonParameters>]

Description

The Clear-ItemProperty cmdlet clears the value of a property, but it does not delete the property. You can use this cmdlet to delete the data from a registry value.

Examples

Example 1: Clear the value of registry key

This command clears the data in the "Options" registry value in the "MyApp" subkey of HKEY_LOCAL_MACHINE\Software\MyCompany.

Clear-ItemProperty -Path "HKLM:\Software\MyCompany\MyApp" -Name "Options"

Parameters

-Confirm

Prompts you for confirmation before running the cmdlet.

Type:SwitchParameter
Aliases:cf
Position:Named
Default value:False
Accept pipeline input:False
Accept wildcard characters:False
-Credential

Note

This parameter is not supported by any providers installed with PowerShell. To impersonate another user, or elevate your credentials when running this cmdlet, use Invoke-Command.

Type:PSCredential
Position:Named
Default value:Current user
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:False
-Exclude

Specifies, as a string array, an item or items that this cmdlet excludes in the operation. The value of this parameter qualifies the Path parameter. Enter a path element or pattern, such as *.txt. Wildcard characters are permitted. The Exclude parameter is effective only when the command includes the contents of an item, such as C:\Windows\*, where the wildcard character specifies the contents of the C:\Windows directory.

Type:String[]
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:True
-Filter

Specifies a filter to qualify the Path parameter. The FileSystem provider is the only installed PowerShell provider that supports the use of filters. You can find the syntax for the FileSystem filter language in about_Wildcards. Filters are more efficient than other parameters, because the provider applies them when the cmdlet gets the objects rather than having PowerShell filter the objects after they are retrieved.

Type:String
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:True
-Force

Indicates that this cmdlet deletes properties from items that cannot otherwise be accessed by the user. Implementation varies from provider to provider. For more information, see about_Providers.

Type:SwitchParameter
Position:Named
Default value:False
Accept pipeline input:False
Accept wildcard characters:False
-Include

Specifies, as a string array, an item or items that this cmdlet includes in the operation. The value of this parameter qualifies the Path parameter. Enter a path element or pattern, such as "*.txt". Wildcard characters are permitted. The Include parameter is effective only when the command includes the contents of an item, such as C:\Windows\*, where the wildcard character specifies the contents of the C:\Windows directory.

Type:String[]
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:True
-LiteralPath

Specifies a path to one or more locations. The value of LiteralPath is used exactly as it is typed. No characters are interpreted as wildcards. If the path includes escape characters, enclose it in single quotation marks. Single quotation marks tell PowerShell not to interpret any characters as escape sequences.

For more information, see about_Quoting_Rules.

Type:String[]
Aliases:PSPath
Position:Named
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:False
-Name

Specifies the name of the property to be cleared, such as the name of a registry value. Wildcard characters are permitted.

Type:String
Position:1
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:True
-PassThru

Returns an object representing the item with which you are working. By default, this cmdlet does not generate any output.

Type:SwitchParameter
Position:Named
Default value:False
Accept pipeline input:False
Accept wildcard characters:False
-Path

Specifies the path to the property being cleared. Wildcard characters are permitted.

Type:String[]
Position:0
Default value:None
Accept pipeline input:True (ByPropertyName, ByValue)
Accept wildcard characters:True
-UseTransaction

Includes the command in the active transaction. This parameter is valid only when a transaction is in progress. For more information, see about_Transactions.

Type:SwitchParameter
Aliases:usetx
Position:Named
Default value:False
Accept pipeline input:False
Accept wildcard characters:False
-WhatIf

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

Type:SwitchParameter
Aliases:wi
Position:Named
Default value:False
Accept pipeline input:False
Accept wildcard characters:False

Inputs

System.String

You can pipe a path string to this cmdlet.

Outputs

None or System.Management.Automation.PSCustomObject

When you use the PassThru parameter, Clear-ItemProperty generates a PSCustomObject object that represents the cleared item property. Otherwise, this cmdlet does not generate any output.

Notes

You can use Clear-ItemProperty to delete the data in registry values without deleting the value. If the data type of the value is Binary or DWORD, clearing the data sets the value to zero. Otherwise, the value is empty.

The Clear-ItemProperty cmdlet 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.