Use o diskpart para formatar o USB.
Método:
- Insert USB
- Open Command Prompt
- Type 'diskpart' without quotes and press Enter.
- A new cmd window will open, type 'list disk' and recognize the USB Drive Name.
- Now type 'select disk x', where X is the drive number or drive letter of the USB flash drive, and then click ENTER.
- Type 'clean', and the click ENTER. This command deletes all data from the USB flash drive.