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How to get a unique PC ID?

  • What is a unique PC identifier?
  • How can we get the unqiue computer id?
  • Is this about the hard drive or the motherboard?

I want to save the PC ID in my window program. Please share me.

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4 answers

This work is for me.

Private Function CpuId() As String
    Dim computer As String = "."
    Dim wmi As Object = GetObject("winmgmts:" & _
        "{impersonationLevel=impersonate}!\\" & _
        computer & "\root\cimv2")
    Dim processors As Object = wmi.ExecQuery("Select * from " & _
        "Win32_Processor")

    Dim cpu_ids As String = ""
    For Each cpu As Object In processors
        cpu_ids = cpu_ids & ", " & cpu.ProcessorId
    Next cpu
    If cpu_ids.Length > 0 Then cpu_ids = _
        cpu_ids.Substring(2)

    Return cpu_ids
End Function

see here

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“Unique PC Identifier” usually means a hardware identifier used to uniquely identify a computer. For example, they can be used to track software usage on computers.

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Dim win32MgmtClass as System.Management.ManagementClass
win32MgmtClass = new System.Management.ManagementClass("Win32_Processor")
Dim processors as System.Management.ManagementObjectCollection
processors = win32MgmtClass.GetInstances()

For Each processor As System.Management.ManagementObject In processors
    MessageBox.Show(processor("ProcessorID").ToString())
Next
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