Set WshShell = CreateObject("WScript.Shell")

' ref: http://www.howtogeek.com/206329/how-to-find-your-lost-windows-or-office-product-keys/



MsgBox ConvertToKey(WshShell.RegRead("HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\DigitalProductId"))

Function ConvertToKey(Key)
Const KeyOffset = 52
i = 28
Chars = "BCDFGHJKMPQRTVWXY2346789"
Do
Cur = 0
x = 14
Do
Cur = Cur * 256
Cur = Key(x + KeyOffset) + Cur
Key(x + KeyOffset) = (Cur \ 24) And 255
Cur = Cur Mod 24
x = x -1
Loop While x >= 0
i = i -1
KeyOutput = Mid(Chars, Cur + 1, 1) & KeyOutput
If (((29 - i) Mod 6) = 0) And (i <> -1) Then
i = i -1
KeyOutput = "-" & KeyOutput
End If
Loop While i >= 0
ConvertToKey = KeyOutput

' this will write the activation key to a file so can copy and paste it
' ref: https://msdn.microsoft.com/en-us/library/t5399c99%28v=vs.84%29.aspx
   Const ForReading = 1, ForWriting = 2
   Dim fso, f
   Set fso = CreateObject("Scripting.FileSystemObject")
   Set f = fso.OpenTextFile("temp.txt", ForWriting, True)
   f.WriteLine "Hello world!" 
   f.WriteLine "VBScript is fun!"
   f.WriteLine ConvertToKey
   Set f = fso.OpenTextFile("temp.txt", ForReading)
   WriteLineToFile = f.ReadAll

End Function