lap4fsf, Hi you
I understand you trying to help on this topic but I don't agree with that ways of "unistalling" Windows (or any other system) at all. If your using an SSD it would be OK but yet this is how to do it the hard way. It is preferable to start from the beggining by making the partitions for a new system and then install Trisquel. Of course that would be after making a backup of the files including the conf ones. It would take a lot less time than the hard way and it is safer.