How To make a USB bootable

How to make USB  bootable..

To make a bootable usb Follow these steps :

1-attach your USB.

2-you must have window(7,8,8.1,10) to make a bootable usb.

3-Download Rufus  software to make bootable Usb.

4-Execute Rufus...

5-When rufus say Done then your Usb is bootable.