Create bootable USB drives with UNetbootin.

The UNetbootin software allows you to create bootable Live USB drives for Linux distributions without burning a CD.
You can either let UNetbootin download one of the many distributions – most are old, see example of Fedora.
Using is simple loads distributions either by select an ISO file or a distribution to download
Select a target drive (USB Drive or Hard Disk), then start by select the USB Drive or Hard Disk by your hardware and then press OK button.
Note: Is not working every version of  UNetbootin but I tested in the past. If don’t work then try this tutorial.