Re: [Trisquel-users] Does windows 10 put data on your mainboard?

[enduzzer]

There's no product key or license key with new OEM preinstalled Windows  
systems that is known to the user. There are programs that generate a key  
based on the BIOS string but it's of no use even if you get it. There's no  
sticker. It's a string in the BIOS that the installer is looking for. No  
string found, it will prompt for a retail key or if a generic key was used,  
it will ask for a new valid key.

The BIOS string makes it possible to reinstall any time without a key and  
activate without an internet connection. A retail license, once installed,  
will need no key for later reinstallations, but its validity is checked  
against a registration server key, so the user must go online.