WD Passport Stopped working properly on my Main Computer only

I have WD Passport 320Gb in size and it manifests itself both ad WD1 and second time as SES deviceon my linux system which today is Peppermint Five. the latest one available in Finish mirrors. It has been working about 2 and half years on my HP DC 7600 desktop, which itself in on line 24/7. It only irritates me that after several reformats on ext4 & Btrfs fystems

it still announces SES-device, so can anyone give me atip how to properly make an absolute reformat which claim all of

320Gb for Linux. As I understand SES system was installed it when I got from an PC-withWin system.

Personally I left Windows long time ago when it was as ver 3.1, later I was using in my work NT4.0 FTER WHICH i CHANGES ME TO linux from Debian vers 3. 1. I have been satisfied with several Linux versions, feeling myself more and

more satisfied with several Ubuntus Mints and other choises of Linus. Not an one if those OS-s has disappointed me.

with regards Rainer Kaasalainen