How to Find Windows 10 Product Key

If you lost or forgot your Windows 10 product key, it’s not a problem. You can quickly retrieve it using one of these methods.

A simple VBscript file can get the Product Key of your current Windows installation. No third-party software required. The script is compatible with Windows 7, 8 and Windows 10.

Find Windows 10 Product Key

  1. Run Notepad.
  2. Copy the following code to a new Notepad document.Option Explicit
    Dim objshell,path,DigitalID, Result
    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 = "Installed Key: " & ConvertToKey(DigitalID)
    ProductData = ProductName & vbNewLine & ProductID & vbNewLine & ProductKey
    'Show messbox if save to a file
    If vbYes = MsgBox(ProductData & vblf & vblf & "Save to a file?", vbYesNo + vbQuestion, "BackUp Windows Key Information") then
    Save ProductData
    End If
    
     
    
    'Convert binary to chars
    Function ConvertToKey(Key)
    Const KeyOffset = 52
    Dim isWin8, Maps, i, j, Current, KeyOutput, Last, keypart1, insert
    'Check if OS is Windows 8
    isWin8 = (Key(66) \ 6) And 1
    Key(66) = (Key(66) And &HF7) Or ((isWin8 And 2) * 4)
    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 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\WindowsKeyInfo.txt"
    Set fso = CreateObject("Scripting.FileSystemObject")
    Set txt = fso.CreateTextFile(fName)
    txt.Writeline Data
    txt.Close
    End Function
  3. Save the file as GetProductKey.vbs.
  4. Double-click the file GetProductKey.vbs to see your Windows 10 Product Key.Find Windows 10 Product KeyIf you bought a new computer that come preinstalled with Windows 10, you can get its product key from the motherboard firmware.

Find Windows 10 Product Key on a New Computer (OEM key)

  1. Run Command Prompt as Administrator.
  2. Type the next command
    wmic path SoftwareLicensingService get OA3xOriginalProductKey
  3. The Windows 10 product key will appear in the command prompt.Find Windows 10 Oem Key
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Author: The MFTNEXT Team

The MSFTNEXT project is a small team of authors who love to engage with the latest technology and gadgets. Being passionate Windows bloggers, we are happy to help others fix their system issues.

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