Wednesday, March 28, 2018

Retrieving Windows Product Key using VB Script

Output of VB Script

In this article, I present the simple and safe method to retrieve product key of Windows operating system using VB Script. The VB Script reads the value of Windows product from the Registry Editor (regedit) and translates it to a formatted product key (25 alphanumeric characters). Also, it creates the backup of the product information to the local drive (Desktop).

Instructions

Step 1: Create a VB Script file “WinProductKey.vbs” using any ASCII text editor and enter the following codes.

Source Code

Dim objshell, path, DigitalID
Set objshell = CreateObject("WScript.Shell")
'Set registry key path
Path = "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\"
'Registry key value
DigitalID = objshell.RegRead(Path & "DigitalProductId")
Dim ProductName, ProductID, ProductKey, ProductData
'Get ProductName, ProductID, ProductKey
ProductName = "Product Name: " & objshell.RegRead(Path & "ProductName")
ProductID = "Product ID: " & objshell.RegRead(Path & "ProductID")
ProductKey = "Product Key: " & ConvertToKey(DigitalID) 
ProductData = ProductName  & vbNewLine & ProductID  & vbNewLine & ProductKey
'Show messbox if save to a file 
If vbYes = MsgBox(ProductData & vblf & vblf & "Do you want to save it to Desktop?", vbYesNo, "Microsoft OS Product Key Information") then
   Save ProductData 
End If

'Convert Binary to Characters
Function ConvertToKey(Key)
    Const KeyOffset = 52
    Dim Maps, i, j, Current, KeyOutput, Last, keypart1, insert
    i = 24
    Maps = "BCDFGHJKMPQRTVWXY2346789"
    Do
        Current = 0
        j = 14
        Do
           Current = Current* 256
           Current = Key(j + KeyOffset) + Current
           Key(j + KeyOffset) = (Current \ 24)
           Current = Current Mod 24
            j = j -1
        Loop While j >= 0
        i = i -1
        KeyOutput = Mid(Maps, Current+1, 1) & KeyOutput
        Last = Current
    Loop While i >= 0 
    keypart1 = Mid(KeyOutput, 2, Last)
    insert = "N"
    KeyOutput = Replace(KeyOutput, keypart1, keypart1 & insert, 2, 1, 0)
    If Last = 0 Then KeyOutput = insert & KeyOutput
    ConvertToKey = Mid(KeyOutput, 1, 5) & "-" & Mid(KeyOutput, 6, 5) & "-" & Mid(KeyOutput, 11, 5) & "-" & Mid(KeyOutput, 16, 5) & "-" & Mid(KeyOutput, 21, 5)
End Function

'Save the data to a file
Function Save(Data)
    Dim fso, fName, txt, objshell, UserName
    Set objshell = CreateObject("wscript.shell")
    'Get current user name 
    UserName = objshell.ExpandEnvironmentStrings("%UserName%") 
    'Create a text file on desktop 
    fName = "C:\Users\" & UserName & "\Desktop\WinKeyInfo.txt"
    Set fso = CreateObject("Scripting.FileSystemObject")
    Set txt = fso.CreateTextFile(fName)
    txt.Writeline Data
    txt.Close
End Function

Step 2: Double-click the “WinProductKey.vbs” file to run the VB Script (image shown at top).

Step 3: Click “Yes” button present near the prompt (“Do you want to save it to Desktop?”), to backup the information to the Desktop.

Windows Product Key Backup

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