how to protect yuor usb 

steps:

1. formatear
2. change ntfs format
3. create new folder 
4. right clck on memory
5. security 
6. advance options
7. total control
8. edit
9. only reading is allowed
10. now we grant the oermissions of the folder
11. right click on properties
12. securyty
13. edid
14. full control and enable permissions