PSPKI

3.2.7.0

Server/Uninstall-CertificationAuthority.ps1

                                function Uninstall-CertificationAuthority {

<#

.ExternalHelp PSPKI.Help.xml

#>

[CmdletBinding(

    ConfirmImpact = 'High',

    SupportsShouldProcess = $true

)]

    param(

        [switch]$AutoRestart,

        [switch]$Force

    )

#region OS and existing CA checking

    # check if script running on Windows Server 2008 or Windows Server 2008 R2

    $OS = Get-WmiObject Win32_OperatingSystem -Property ProductType

    if ([Environment]::OSVersion.Version.Major -lt 6) {

        Write-Error -Category NotImplemented -ErrorId "NotSupportedException" `

        -Message "Windows XP, Windows Server 2003 and Windows Server 2003 R2 are not supported!"

        return

    }

    if ($OS.ProductType -eq 1) {

        Write-Error -Category NotImplemented -ErrorId "NotSupportedException" `

        -Message "Client operating systems are not supported!"

        return

    }

    $CertConfig = New-Object -ComObject CertificateAuthority.Config

    try {$ExistingDetected = $CertConfig.GetConfig(3)}

    catch {

        Write-Error -Category ObjectNotFound -ErrorId "ElementNotFoundException" `

        -ErrorAction Stop -Message "Certificate Services are not installed on this computer."

    }

#endregion

#region Binaries checking and removal stuff

    try {$CASetup = New-Object -ComObject CertOCM.CertSrvSetup.1}

    catch {

        Write-Error -Category NotImplemented -ErrorId "NotImplementedException" `

        -Message "Unable to load necessary interfaces. Your Windows Server operating system is not supported!"

        return

    }

    if ([Environment]::OSVersion.Version.Major -eq 6 -and [Environment]::OSVersion.Version.Minor -eq 0) {

        cmd /c "servermanagercmd -remove ADCS-Cert-Authority 2> null" | Out-Null

    } else {

        try {Import-Module ServerManager -ErrorAction Stop}

        catch {

            ocsetup 'ServerManager-PSH-Cmdlets' /quiet | Out-Null

            Start-Sleep 2

            Import-Module ServerManager

        }

        $status = (Get-WindowsFeature -Name ADCS-Cert-Authority).Installed

        if ($status) {

            $WarningPreference = "SilentlyContinue"

            if ($Force -or $PSCmdlet.ShouldProcess($env:COMPUTERNAME, "Uninstall Certification Authority")) {

                $CASetup.PreUninstall($false)

                $retn = Remove-WindowsFeature -Name ADCS-Cert-Authority -ErrorAction Stop

            }

        }

    }

    if ($AutoRestart) {

        Restart-Computer -Force

    } else {

        Write-Host "Certification Authority role was removed successfully. You must restart this server to complete role removal." `

        -ForegroundColor Yellow -BackgroundColor Black

    }

#endregion

}

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