By Achilles Hill | Last Updated
Even though you can get Windows 10 free upgrade now if you are Windows computer user, and are able to successfully upgrade official Windows 7 or Windows 8 to Windows 10, Windows 10 product key seems to be not important for you because you don't need to activate windows 10 manually. However, if you get a new computer preinstalled with Windows 10, and now you want to reinstall it to solve some system problems, Windows 10 product key will be necessary during reinstallation.
Now follow the article, you will get four effective methods to find Windows 10 product key in system registry after installation.
The following are 3 steps to find Windows 10 lost product key with iSunshare Product Key Finder, which could effectively help to recover product keys for Windows/Office/Adobe/IE/SQL Server/VMware/Exchange Server and Visual Studio etc.
Step 1: Download and install iSunshare Product Key Finder on computer Windows 10 installed.
Step 2: Run it and click Start Recovery button on bottom menu.
Note: If you are using Product Key Finder trial version, now you would get a message on pop-up dialog, prompting you to Order Full Version or Enter Registration Code in order to find all Windows 10 product key codes.
Step 3: Preview and save Windows 10 product key and other software product keys.
In the middle part of Product Key Finder, you can see Windows 10 product key and product ID. Just click Save To File button, and browse a location to save Windows 10 product key. Now you can reinstall Windows 10 on computer with this product key.
Tips: If that is not Product Key Finder full version, users only could preview Windows 10 partial product key codes in this part.
Even if Windows 10 is running normally on your computer, Windows 10 users could also run iSunshare Product Key Finder to get Windows 10 product key and make a backup. So you can take it no matter you want.
VB script can read the value out of the registry and then translate it into the format that you need for reinstalling.
Step 1: Copy and paste the following scripts in Notepad.
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
Step 2: Save the notepad as "windowsproudctkey.vbs".
1. Click File Save As in Notepad.
2. Choose "Save as type" All Files in Save As window, and name it windowsproductkey.vbs. Then save it to the desktop for easy access.
Step 3: Double-click "windowsproductkey.vbs" and pop-up window shows Windows 10 product key.
You can also use Command Prompt to find the lost Windows 10 product key and here are the details.
Step 1: Type command prompt in the search bar and run it as administrator.
Step 2: Enter wmic path SoftwareLicensingService get OA3xOriginalProductKey in the command prompt window. Then the lost Windows 10 product key will be shown instantly.
Registry Editor is a useful tool to recover the lost Windows 10 product key, but you need to be careful not modify it and you can't get the lost key directly.
Step 1: Input regedit in the search box and click Run it as administrator.
Step 2: Search HKEY_LOCAL_ MACHINE\SOFTWARE\Microsoft\windows NT\Currentversion in the Registry Editor.
Step 3: In the right panel, find DigitalProductID and then apply a third-party tool to decode its value data to get the lost key.
Summary:
Among the four methods, the first two methods, expecially using the Product Key Finder method, can help you to retrieve the Windows 10 product key quickly and safely. But the last two methods has lower success rate, which we just list here for your reference.
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