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Querying the Status of Optional Features

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In Windows 7, WMI implemented the Win32_OptionalFeature class. This class retrieves the status of the optional features that are present on a computer.

You can use Windows PowerShell cmdlets to query the status of optional features. All of the examples in this topic use the Get-WmiObject cmdlet. For more information, see Get-WmiObject.

To retrieve all instances of optional features present on a computer

PowerShell 
Get-WmiObject Win32_OptionalFeature

To query for an optional feature by specifying the feature name

PowerShell 
Get-WmiObject -query "select * from Win32_OptionalFeature where name = 'TelnetClient'"

Note

The name property is case-sensitive.

To query for optional features by specifying the install state

PowerShell 
Get-WmiObject -query "select * from win32_optionalfeature where installstate= 1"

For more information about the possible values for the InstallState property, see Win32_OptionalFeature.

Win32_OptionalFeature