1)  Find Windows Product Key – ProduKey

The first method to get your product key on Windows 8 and earlier is by using a third-party program from Nirsoft called ProduKey. It’s free and Nirsoft software is always clean, so you don’t have to worry about viruses or malware.

Scroll down towards the bottom of the page to get to the download links. If you have 64-bit Windows installed, download the x64 version of the program. Once you download it, unzip the files and run the ProduKey application.

2)  Find Windows Product Key – Script

If you don’t want to download any software, you can simply create a script that will return the value of the product key. In order to create the script, you need to first open Notepad. Then, copy and paste in the following code:

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

Now click File and then Save As. To save the file as a script, you need to add .vbs to the end of the file name and you need to choose All Files for the Save as type box.

Click Save and now go to the folder where you saved the script. Double-click to run it and you should get a small window with your Windows product key.

This script is short and doesn’t give you any other info about Windows. If you need to know what edition of Windows you have installed, just open the Control Panel and click on System. At the top, it’ll tell you the edition.

So those are two easy ways to get your product key for Windows. As mentioned earlier, Windows 10 no longer has a product key, so it’s a good idea to get your key before you upgrade Windows 7 or 8. If you’ve already upgraded your machine, you should be able to reinstall Windows 10 (the same edition) on that machine without needing to reactivate or enter any product key.

If you replace too many parts on your computer or your computer dies and you want to move it to another computer, you can either reinstall Windows 7 or 8 before July 29, 2016 and upgrade or you will have to call Microsoft and hopefully they’ll allow you to activate Windows. If you have any questions, feel free to comment. Enjoy!

3)  Find Windows Product Key – Sticker

Note : If you have Windows 8.1 installed, you won’t have any product key unless you bought a retail version of the operating system. Otherwise, the product key is now stored in an encrypted format in the BIOS or UEFI firmware. This means a lot of Windows 8 machines bought from Dell, HP, etc. won’t even have a COA sticker on the side or back of the machine.