- First connect the usb with device.
- open CMD with admin .
- Write command diskpart and hit Enter.
- list disk
- select disk 1
- clean
- create partition primary
- format fs=fat32 quick
- select disk
- active
After that copy window file in USB . Your USB it bootabled
If you want to save more time then format usb before or write these commands
diskpart
list disk
select disk
active
and copy files.