Concerning the Windows 10 free upgrade

[f3bandit]

Ok just a heads up! all the tools to recover a product key from windows will not work properly in windows 10.
it will show a key. But it will be the same key you used to activate you're windows 7 or 8 install prior to upgrading.
Microsoft has moved were they store the key in the registry. Not only that but it is stored in hexadecimal. you need 
to run a script I will be attaching to this post. this will show you the actual key, for use in a clean install. I'm sure some 
of you have  already done the free upgrade, And then proceeded to do a clean install. Only to find you're system wouldn't 
activate or you received a message stating "Key Blocked". I don't believe microsoft has everything worked out. 
but here is your solution.  -enjoy