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function getVolumeInformation{
    param($hostName, $credential)
    $volumeInformation = getVolumeInformation -computerName $hostName -credential $credential                   


    $WMIRegistryMountedDeviceInfo = WMIRegistryMountedDeviceInfo -computerName $hostName -Credential $credential
    foreach($volumeSerial in $volumeInformation.keys){                        
        if($WMIRegistryMountedDeviceInfo.containsKey($volumeSerial)){                        
            $volumeInformation[$volumeSerial]["diskPartitionStartingOffset"]=$WMIRegistryMountedDeviceInfo[$volumeSerial].diskPartitionStartingOffset
            $volumeInformation[$volumeSerial]["diskDriveSignature"]=$WMIRegistryMountedDeviceInfo[$volumeSerial].diskDriveSignature
            $volumeInformation[$volumeSerial]["wmiValueRegistry"]=$WMIRegistryMountedDeviceInfo[$volumeSerial].wmiValue
        }   
    }
    return $volumeInformation
}



function getWMIVolumeInformation{
    param($computerName, $credential)
    $diskToVolumeAssociation = @{}
    $regexGetVolumeSerial = ".*Volume{(.*)}.*"
    $wmiVolumes = $null
    $wmiVolumes = Get-WmiObject Win32_Volume -Credential $credential -ComputerName $computerName -filter "DriveType != 5" -ErrorVariable errorWMIVolume -ErrorAction SilentlyContinue

    $volumeInfo = @{}

    $wmiVolumes |   Foreach-Object {
        $wmiVolume = $_
        if($wmiVolume.DeviceID -match  $regexGetVolumeSerial){
            $wmiVolumeSerial = $Matches[1]
            $volumeInfo[$wmiVolumeSerial] = @{}
            $volumeInfo[$wmiVolumeSerial]["wmiInfo"] = $wmiVolume
            $volumeInfo[$wmiVolumeSerial]["volumeDirectoryName"] = $wmiVolume.Name
            $volumeInfo[$wmiVolumeSerial]["label"] = $wmiVolume.label
            $volumeInfo[$wmiVolumeSerial]["serial"] = $wmiVolumeSerial
            $volumeInfo[$wmiVolumeSerial]["capacity"] = $wmiVolume.Capacity
            $volumeInfo[$wmiVolumeSerial]["freeSpace"] = $wmiVolume.FreeSpace
        }
    }
    return $volumeInfo  


}
function WMIRegistryMountedDeviceInfo{
    param($computerName, $mycreds)
    $MountPointRegistryInformation = @{}

    $hklm = 2147483650
    $registryKeyMountedDevices = "SYSTEM\MountedDevices"
    $regexMountPoint = ".*{(.*)}.*"

    $wmi = get-wmiobject -list "StdRegProv" -namespace root\default -computername $computerName -credential $mycreds
    $wmiMountedDeviceKey = ($wmi.EnumValues($hklm,$registryKeyMountedDevices))

    foreach($mountedDeviceRegistryName in $wmiMountedDeviceKey.sNames){

        if($mountedDeviceRegistryName -match $regexMountPoint){
            $wmiValue = ($wmi.GetBinaryValue($hklm,$registryKeyMountedDevices,$mountedDeviceRegistryName))
            if($wmiValue.uValue.Count -eq 12){
                $diskDriveSignature = [bitconverter]::ToUInt32($wmiValue.uValue[0..3],0)
                $diskPartitionStartingOffset = [bitconverter]::ToUInt64($wmiValue.uValue[4..11],0)
                $MountPointRegistryInformation[$Matches[1]]=@{"serial"=$Matches[1];
                    "mountedDeviceRegistryName"=$mountedDeviceRegistryName;
                    "diskDriveSignature"=$diskDriveSignature;
                    "diskPartitionStartingOffset"=$diskPartitionStartingOffset;
                    "wmiValue"=$wmiValue.uValue}

            }
        }      
    }

   return $MountPointRegistryInformation
}