So many question about how to get hard disk physical serial number, and mostly answered by using WMI. And it doesn't solve my problem. I used to use HDSN code that I got from Planet Source Code when I was still using Visual Basic 6 (VB6). And now with VB.NET I need the same result but I couldn't get it with WMI. Is there any other way to get Factory Serial Number without WMI? Finally I got the best solution using DeviceIOControl that I got from a blog named jo0ls' .Net stuff . And I adapt it to my code to fulfill my need. Here are the steps. First I created a windows form project/solution named HDDSerial Number, add a module name SerialNumber.vb and type below codes: Imports System.Runtime.InteropServices Imports Microsoft.Win32.SafeHandles Imports System.Security Imports System.ComponentModel Imports System.Text Module SerialNumber _ Private Class NativeMethods "kernel32" , SetLastError:= True )> _ Public Shared Function CreateFile( _ ByVal FileName As String , _ ByVal DesiredAccess As Integer , _ ByVal ShareMode As Integer , _ ByVal SecurityAttributes As IntPtr , _ ByVal CreationDisposition As Integer , _ ByVal FlagsAndAttributes As Integer , _ ByVal hTemplateFile As IntPtr) As SafeFileHandle End Function "kernel32.dll" , SetLastError:= True )> _ Friend Shared Function DeviceIoControl( _ ByVal deviceHandle As SafeFileHandle, _ ByVal controlCode As Integer , _ ByRef inBuffer As ATA_PASS_THROUGH_EX_WITH_BUFFERS, _ ByVal inBufferSize As Integer , _ ByRef outBuffer As ATA_PASS_THROUGH_EX_WITH_BUFFERS, _ ByVal outBufferSize As Integer , _ ByRef bytesReturned As Integer , _ ByVal overlapped1 As IntPtr) As Boolean End Function End Class _ Private Structure ATA_PASS_THROUGH_EX Public Length As Short Public AtaFlags As Short Public PathId As Byte Public TargetId As Byte Public Lun As Byte Public ReservedAsUchar As Byte Public DataTransferLength As Integer Public TimeOutValue As Integer Public ReservedAsUlong As Integer Public DataBufferOffset As IntPtr _ Public PreviousTaskFile() As Byte _ Public CurrentTaskFile() As Byte End Structure _ Private Structure ATA_PASS_THROUGH_EX_WITH_BUFFERS Public Apt As ATA_PASS_THROUGH_EX _ Public Data() As Byte End Structure Public Enum HDINFO HD_MODEL_NUMBER = 0 HD_SERIAL_NUMBER = 1 HD_FIRMWARE_REVISION = 2 End Enum Public Function HDDInfo( ByVal InfoType As HDINFO) As String Dim letter As Char = "c" Const GenericRead As Integer = &H80000000 Const GenericWrite As Integer = &H40000000 Const FileShareRead As Integer = 1 Const FileShareWrite As Integer = 2 Const OpenExisting As Integer = 3 Dim drivePath As String = String .Concat( "\\.\" & letter & ":" ) Using driveHandle As SafeFileHandle = NativeMethods.CreateFile( _ drivePath, _ GenericRead Or GenericWrite, _ FileShareRead Or FileShareWrite, _ IntPtr.Zero, _ OpenExisting, _ 0, _ IntPtr.Zero) If driveHandle.IsInvalid Then Return "CreateFile ERROR: " & ( New Win32Exception).Message End If Dim apex As New ATA_PASS_THROUGH_EX apex.Length = Marshal.SizeOf(apex) ' ATA_FLAGS_DATA_IN apex.AtaFlags = 2 ' The command returns a 512 byte package of berita. apex.DataTransferLength = 512 apex.TimeOutValue = 10 ' 10 second timeout. apex.DataBufferOffset = Marshal.OffsetOf( _ GetType (ATA_PASS_THROUGH_EX_WITH_BUFFERS), "Data" ) ' This contains the command we are requesting. apex.CurrentTaskFile = New Byte(7) 'the command "IDENTIFY DEVICE" apex.CurrentTaskFile(6) = &HEC Dim apexb As New ATA_PASS_THROUGH_EX_WITH_BUFFERS apexb.Apt = apex Dim inBufferSize As Integer = Marshal.SizeOf( _ GetType (ATA_PASS_THROUGH_EX_WITH_BUFFERS)) Dim bytesReturned As Integer Const IOCTL_ATA_PASS_THROUGH As Integer = &H4D02C Dim result As Boolean = NativeMethods.DeviceIoControl( _ driveHandle, IOCTL_ATA_PASS_THROUGH, _ apexb, inBufferSize, apexb, inBufferSize, _ bytesReturned, IntPtr.Zero) If result = False Then Return "DeviceIOControl ERROR: " & ( New Win32Exception).Message End If Select Case InfoType Case HDINFO.HD_SERIAL_NUMBER Return GetString(apexb.Data, 20, 20) Case HDINFO.HD_FIRMWARE_REVISION Return GetString(apexb.Data, 46, 8) Case HDINFO.HD_MODEL_NUMBER Return GetString(apexb.Data, 54, 40) Case Else Return Nothing End Select End Using End Function Private Function GetString( ByVal bytes() As Byte , _ ByVal offset As Integer , _ ByVal length As Integer ) As String ' The strings are slightly weird - endianness? ' If you use ASCII.GetBytes Then Each character ' pair is reversed. Dim sb As New StringBuilder() For i As Integer = offset To offset + length - 1 Step 2 sb.Append(Chr(bytes(i + 1))) sb.Append(Chr(bytes(i))) Next Return RTrim(LTrim(sb.ToString)) End Function End Module Set UI of Form1 Text "Hardisk Serial Number", add 3 labels and 3 TextBoxes. Name textboxes as txtSerialNumber, txtModel, and txtFirmware. Then type below code: Imports System.Management Public Class Form1 Private Sub Form1_Load( ByVal sender As Object, _ ByVal e As EventArgs) Handles MyBase .Load Try txtSerialNumber.Text = HDDInfo(HDINFO.HD_SERIAL_NUMBER) txtModel.Text = HDDInfo(HDINFO.HD_MODEL_NUMBER) txtFirmware.Text = HDDInfo(HDINFO.HD_FIRMWARE_REVISION) Catch ex As Exception MsgBox(ex.Message) End Try End Sub End Class Test run, then here is my PC result: Notes: Don't forget to Run as Administrator so application could work properly on Vista, Windows 7, and Windows 8. Reference: http://stackoverflow.com/questions/782053/get-hdd-and-not-volume-serial-number-on-vista-ultimate-64-bit http://jo0ls-dotnet-stuff.blogspot.co.id/2011/02/getting-hard-disk-drive-informasi-with.html Click here if you like this article. Sumber http://rani-irsan.blogspot.com