Creating a bootable USB stick for Windows XP, Vista, 7, 8 and Linux installations

Via command-line

Follow this tutorial to prepare the USB stick with diskpart.

Via GUI wizard

If you don’t always want to remember and enter the same commands, look at this software. It provides a simple, but effective GUI to create bootable USB sticks from ISO images.

Also useful: UNetBootin. It also downloads e.g. your favourite Linux distro automatically.