Get Windows capabilities for an image or a running Operating System.
This relates to the features shown in Settings> “Optional features”. e.g. MS Paint, Notepad, OpenSSH.

      Get-WindowsCapability [-Name String] [-LimitAccess] [-Source String[]]
         { -Path String | -Online }
            [-WindowsDirectory String] [-SystemDrive String] [-ScratchDirectory String]
               [-LogLevel {Errors | Warnings | WarningsInfo}] [-LogPath String] [CommonParameters]

       Indicates that this cmdlet does not access Windows Update for the source package.

   -LogLevel [LogLevel]
       Specifies the maximum output level shown in the logs. The default log level is 3. The accepted values are as 
        1 = Errors only
        2 = Errors and warnings
        3 = Errors, warnings, and information
        4 = All of the information listed previously, plus debug output
   -LogPath [String]
       Specifies the full path and file name to log to. If not set, the default is %WINDIR%\Logs\Dism\dism.log.
       In Windows PE, the default directory is the RAMDISK scratch space which can be as low as 32 MB. The log file 
       will automatically be archived. The archived log file will be saved with .bak appended to the file name and a 
       new log file will be generated. Each time the log file is archived the .bak file will be overwritten. 
       When using a network share that is not joined to a domain, use the net use command together with domain 
       credentials to set access permissions before you set the log path for the DISM log.
   -Name [String]
       Specifies the identity of the capability in an Operating System image to get.
       Indicates that the cmdlet operates on a running Operating System on the local host.
   -Path String
       Specifies the full path to the root directory of the offline Windows image that you will service. If the 
       directory named Windows is not a subdirectory of the root directory, -WindowsDirectory must be specified.
   -ScratchDirectory [String]
       Specifies a temporary directory that will be used when extracting files for use during servicing. The 
       directory must exist locally. If not specified, the \Windows\%Temp% directory will be used, with a 
       subdirectory name of a randomly generated hexadecimal value for each run of DISM. Items in the scratch 
       directory are deleted after each operation. 
       You should not use a network share location as a scratch directory to expand a package (.cab or .msu file) for 
       installation. The directory used for extracting files for temporary usage during servicing should be a local 

   -Source [String[]]
       Allows you to check the capabilities that are installable from a location that contains packages  used to install
       capabilities, such as a FOD repository. Multiple Source arguments can be used.
       If you specify multiple Source arguments, the files are gathered from the first location where they are found 
       and the rest of the locations are ignored. Separate source locations with a comma.
       If you do not specify a Source, the default location set by Group Policy is used. WindowsUpdate is also used 
       for online images.
   -SystemDrive [String]
       Specifies the path to the location of the BootMgr files. This is necessary only when the BootMgr files are 
       located on a partition other than the one that you are running the command from. Use -SystemDrive to service 
       an installed Windows image from a Windows PE environment.
   -WindowsDirectory [String]
       Specifies the path to the Windows directory relative to the image path. This cannot be the full path to the 
       Windows directory; it should be a relative path. If not specified, the default is the Windows directory in the 
       root of the offline image directory.


Get the Windows capabilities for an image specified by -name:

PS C:\> Get-WindowsCapability -Path "C:\offline" -Name "Language.TextToSpeech~~~fr-FR~"

Get the Windows capabilities for the local Operating System:

PS C:\> Get-WindowsCapability -Online

Install all the available RSAT tools:

PS C:\> Get-WindowsCapability -Name RSAT* -Online | Add-WindowsCapability –Online

List the currently installed RSAT tools:

PS C:\> Get-WindowsCapability -Name RSAT* -Online | Select-Object -Property Name, State

“What we can or cannot do, what we consider possible or impossible, is rarely a function of our true capability.
It is more likely a function of our beliefs about who we are” ~ Albert Camus

Related PowerShell Cmdlets

Add-WindowsCapability - Install a Windows capability package on the specified OS image.
Remove-WindowsCapability - Uninstall a Windows capability package from an image.
Get-WindowsFeature - Retrieve roles, role services, and features.
Get-WindowsOptionalFeature - Get information about optional features in a Windows image.

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