Repair-SCCMClientHttpStatus.ps1

function Repair-SCCMHttpStatus($ComputerName,$DesiredHttpsState = 0x0000005f)
{
    $WhatIf = $false
    $HTTPSStates = @{
        '0'   = 'Mixed mode'
        '31'  = 'Native mode'
        '63'  = 'Native mode, CRL'
        '95'  = 'Native mode, FALLBACK'
        '127' = 'Native mode, CRLANDFALLBACK'

    }
    
    # The 'HttpsState' registry value determines whether the 
    # SCCM Client uses Native (HTTPS) or Mixed (HTTP) communication.
    #
    $SCCMService = Get-Service -ComputerName $ComputerName -Name 'ccmexec' -ErrorAction SilentlyContinue
    
    $OSArchitecture = (Get-WmiObject -ComputerName $ComputerName Win32_OperatingSystem).OSArchitecture
    $Subkey = "SOFTWARE\\Microsoft\\CCM"
    if ($OSArchitecture -eq '64-bit') { $Subkey = "SOFTWARE\\Wow6432Node\\Microsoft\\CCM" }
    
    if ($SCCMService)
    {               
        $reg = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('LocalMachine', $computername ) 
        $regKey = $reg.OpenSubKey($Subkey,$true) 
        $StartingHTTPSState = $regKey.GetValue('HttpsState') 

        # If the data of the 'HttpsState' value doesn't match the desired value, replace it.
        if ($StartingHTTPSState -ne $DesiredHttpsState)
        {
            Write-Warning "SCCM Client on '$ComputerName' has invalid 'HttpsState ($StartingHTTPSState)'"
            Write-Host "$(if ($WhatIf) { 'WHATIF: ' } else { '' })Performing operation 'SetValue=$DesiredHttpsState' on 'HttpsState'"
            if (!$WhatIf) { $regKey.SetValue("HttpsState",$DesiredHttpsState,'DWORD') }
        }
        $FinalHTTPSState = $regKey.GetValue('HttpsState') 
        if (($FinalHTTPSState -ne $DesiredHttpsState) -and ($StartingHTTPSState -ne $Null)) 
        { 
            Write-Warning "Failed to set 'HTTPSState($FinalHTTPSState)' to '$DesiredHttpsState'"
        } 
        write-output $( [pscustomobject]@{'StartingValue'=$StartingHTTPSState; 'FinalValue'=$FinalHTTPSState}  )
    }
    else
    {
        Write-Warning "SCCM Client is not installed on '$ComputerName'."
    }
    
}