Add-WindowsCapability: resolve error 0x800f0954

In this tutorial, I will explain how to solve error 0x800f0954 with the PowerShell Add-WindowsCapability Cmdlet when trying to install a Windows feature.

This error mainly occurs when you use a WSUS server to update your Windows computers and therefore when using the Cmdlet Add-WindowsCapability, it will look for files on the WSUS server.

Here is the error:

To solve this problem, you must tell the computer to use Windows Update for optional components, this configuration is done using Group Policy.

This need being punctual, I advise you to do this configuration locally.

Open the Local Group Policy Editor console: gpedit.msc.

Go to the location: Computer Configuration / Administrative Templates / System and find the setting Specify settings for installing optional components and repairing component 1, double click on it to open it.

Enable setting 1 and check the box 2 Download repair content and optional options from Windows Update instead of Windows Server Update Services (WSUS), then click Apply buttons 3> > and OK 4 to confirm and close.

Enter the gpupdate /force command to update the settings.

You should be able to run your Add-WindowsCapability command again and it should run without error.

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Romain Drouche
System Architect | MCSE: Core Infrastructure
IT infrastructure expert with over 15 years of field experience. Currently a Systems and Networks Project Manager and Information Systems Security (ISS) expert, I use my expertise to ensure the reliability and security of technological environments.

1 thought on “Add-WindowsCapability: resolve error 0x800f0954”

  1. Didn’t work for me, as WSUS was forcing too much. But a dude in another thread came up with a solution to clear the windows update policy cache. This is my working script:

    # Set Windows Update options
    Set-ItemProperty -Path “HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate” -Name SetPolicyDrivenUpdateSourceForDriverUpdates -Value 0
    Set-ItemProperty -Path “HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate” -Name SetPolicyDrivenUpdateSourceForFeatureUpdates -Value 0
    Set-ItemProperty -Path “HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate” -Name SetPolicyDrivenUpdateSourceForOtherUpdates -Value 0
    Set-ItemProperty -Path “HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate” -Name SetPolicyDrivenUpdateSourceForQualityUpdates -Value 0
    Set-ItemProperty -Path “HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU” -Name UseUpdateClassPolicySource -Value 0

    # Clear Cache
    Remove-Item -Path “HKLM:\SOFTWARE\Microsoft\WindowsUpdate\UpdatePolicy\GPCache\CacheSet001\WindowsUpdate” -Recurse -Force
    Remove-Item -Path “HKLM:\SOFTWARE\Microsoft\WindowsUpdate\UpdatePolicy\GPCache\CacheSet002\WindowsUpdate” -Recurse -Force

    # Restart Update Service
    Restart-Service wuauserv

    # Install FoD packages:
    Add-WindowsCapability -Online -Name Rsat.ActiveDirectory.DS-LDS.Tools~~~~0.0.1.0
    Add-WindowsCapability -Online -Name Rsat.GroupPolicy.Management.Tools~~~~0.0.1.0

    # Restore GPO settings
    gpupdate /force

    Reply

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