Create a Bootable USB By CMD

1.plug-in your USB stick 

2.CMD run as admin privilege

3.Type Diskpart command

4. select disk 1 ( assume ur usb disk
1 )

5.clean


6.create partition primary

7.select partition 1

8.active

9.format fs=NTFS QUICK

10.assign

11.exit

Copy files to USB Drive and change
Boot sequence in BIOS.