LinuxLive USB Creator is a free and open-source software for Windows. It will help you in your journey of discovery with Linux.
For you, LiLi creates portable, bootable and virtualized USB stick running Linux.
LiLi is designed to be used by both beginners and geeks.
If you are a beginner, LiLi will let you try Linux for the first time, keeping Windows clean of any modifications.
And if you are a geek, LiLi will allow you to test almost any Linux distributions directly from Windows, or just install them from a USB flash drive instead of CDs.