So, I was helping my friend do the free upgrade from windows 8 to windows 10, but he bought his computer with windows 8 and messed up the System Key for windows (Because when you buy a computer with windows on it it has its own key called "Default Key" or "System Key") , so all of his recovery setting won't load (the load might not be this). I am basically wondering how to fix it back to "default key" so I can download windows 10 to it. Also, I would recover it from OEM but it won't let me.
It is a Toshiba Satellite.
Thanks for any help.