This article explains how to find the product key for a previously activated Windows 10 installation using built-in Windows tools or third-party applications.
If your system is not activated and you have not previously entered a product key, you can purchase a licensed product key for various versions of Windows 10 from our catalog on the following page starting at 8.2 €. The product will be delivered instantly to your email. We also offer guaranteed and round-the-clock technical support.
1) The first method is the simplest, using standard Windows tools and a VBS script. Create a text document (Notepad) and copy the following script into it:
Set WshShell = CreateObject(“WScript.Shell”)
regKey = “HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\”
DigitalProductId = WshShell.RegRead(regKey & “DigitalProductId”)
Win10ProductName = “Windows 10 Version: ” & WshShell.RegRead(regKey & “ProductName”) & vbNewLine
Win10ProductID = “Product ID: ” & WshShell.RegRead(regKey & “ProductID”) & vbNewLine
Win10ProductKey = ConvertToKey(DigitalProductId)
ProductKeyLabel =”Windows 10 Key: ” & Win10ProductKey
Win10ProductID = Win10ProductName & Win10ProductID & ProductKeyLabel
MsgBox(Win10ProductID)
Function ConvertToKey(regKey)
Const KeyOffset = 52
isWin10 = (regKey(66) \ 6) And 1
regKey(66) = (regKey(66) And &HF7) Or ((isWin10 And 2) * 4)
j = 24
Chars = “BCDFGHJKMPQRTVWXY2346789”
Do
Cur = 0
y = 14
Do
Cur = Cur * 256
Cur = regKey(y + KeyOffset) + Cur
regKey(y + KeyOffset) = (Cur \ 24)
Cur = Cur Mod 24
y = y -1
Loop While y >= 0
j = j -1
winKeyOutput = Mid(Chars, Cur + 1, 1) & winKeyOutput
Last = Cur
Loop While j >= 0
If (isWin10 = 1) Then
keypart1 = Mid(winKeyOutput, 2, Last)
insert = “N”
winKeyOutput = Replace(winKeyOutput, keypart1, keypart1 & insert, 2, 1, 0)
If Last = 0 Then winKeyOutput = insert & winKeyOutput
End If
a = Mid(winKeyOutput, 1, 5)
b = Mid(winKeyOutput, 6, 5)
c = Mid(winKeyOutput, 11, 5)
d = Mid(winKeyOutput, 16, 5)
e = Mid(winKeyOutput, 21, 5)
ConvertToKey = a & “-” & b & “-” & c & “-” & d & “-” & e
End Function
Save this file with any name, but give it the extension .vbs. Make sure the source file does not have a .txt extension.
Then, run the resulting file, and a window will display your Windows 10 version and the product key that was entered into your system.
2) The second method is using the simple utility ShowKeyPlus, which allows you to view the following parameters:
Product Name: Version of Windows 10
Installed Key: Product key of the installed system.
OEM product Key (Original): product key of the pre-installed OS, if it was on the computer, i.e., the product key from UEFI.
You can download the utility for free from the Windows Store.
3) Let’s also consider another simple utility – NirSoft ProduKey. This free utility displays product keys of installed Microsoft products, including the activated product key in Windows 10. The application is available for download from the official NirSoft website.
