To get the writing permission on my file and folder I just had to to go in properties and uncheck read-only. But what I don't understand with that is why every time I go back in those properties the read-only is checked again. Does it automatically check back the read-only by default when we go into the properties of the folder?
I guess so, it does the same thing with my other computer.
*I've auto answering my other question because I thought that might be interesting to know