Te pic up there is my flashdisk that have a lot of things on it but it doesnt show , This is how you handle this kind of situation ( Only on MAC ) :
1) Open disk utility
2) you will see All of your USB, Harddrive and any sort of your stuff
3) click your flashdisk/USB
4) There should be an erase button in top
5) Just click it and then
6) Ur flash disk reset
This is my first ever Photoshop edit lol :) without TUTOR.. just me trying
this is like years ago.. BTW im a skater :)
The logo is Plan B skateboard..
Hope u enjoy ...