How to create bootable USB for windows 7/8/8.1

Creating bootable USB for Windows 7/8/8.1 is now very easy and fast with WinToFlash app. This app provides easy to use interface and it can create bootable USB with disc image OR copied files of an OS from your hard disk. After creating the bootable USB, you can install your computers without having to worry about the optical drive or bootable disc. So, let's see the steps to make a bootable