How to find windows product key

     3 Ways Find Windows 10 Product Key

1. Find Windows 10 product key using Windows Registry

Here is the script which will translate all the Unreliable Registry Values in the Readable Format. First, you need to boot into your windows computers.

This VBScript is shared on the Microsoft forums, copy the below script in the Notepad and share the text document as “product.vbs”
Remember to choose “All Files” option in “Save as Type.”

Set WshShell = CreateObject("WScript.Shell")
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
End Function

Once you save the file, click on it. You will see the product key in Popup.

2. Find Windows 10 product key using Command Prompt

It’s very straightforward to find the Windows 10 product key using Command Prompt, you have to open the CMD and paste the below command in it, you will get your product key. 
Command: 

wmic path softwarelicensingservice get OA3xOriginalProductKey

Please type or paste it in the CMD.

3. Find the Windows License Key using PowerShell.

In order to find the product key with PowerShell, you have the open a new Powershell with administrative permissions and the below commands in it.

powershell “(Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKey”

This is the command.