I'd like to share with you the steps performed in order to repair my USB that appears to be reset as 0 GB of capacity which don't allow to see its content.
First check this link for the errors I reported in a forum.
After post that thread in the forum, I still searched for a solution and I find this page which show more clues to understand the issue.
That was how I find this comment on this video which provide me the name application that will help him so I decided to test it.
So the option "Restore" made the job and repair my usb
