USB Pendrive

 
YUMI
YUMI exFAT - a Multiboot USB bootable software. Easily copy multiple ISO images to a bootable USB flash drive and select which ISO to load at boot
How to Restore USB flash drive using diskpart in Windows
Source
Open a command Prompt as administrator (cmd.exe)
Type diskpart
Next type list disk
Type Select Disk X (where X is the disk number of your drive).
Type clean
 * If Error, See Note Below
Next type create partition primary
Type Format fs=exfat quick
Note: (for 32GB and smaller drives, use fs=fat32) instead.
Then type active
Next type assign
Finally, type exit to quit