Recovering Windows Authentication code

[Evolving Noob]

Hey guys, noob here!
I was wondering if there's any way to recover the authentication code for your windows OS through the system/online.
I'm formatting my system and would like not having to repurchase the OS
Super thanks in advance!

[Altecice]

Here is a nice article about a program that can do it for you - http://www.techradar.com/downloads/windows-product-key-finder-professional

[omricn]

http://www.belarc.com/free_download.html

 

You're welcome.