Install Fedora to a flash drive using Windows..

 Its Minimum Flash Drive Capacity: 1GB
 Its Persistent Feature: Yes
Prerequisites for Creating a Live USB Fedora:

• Windows host PC (Tested on Windows XP)
• 1GB+ USB flash drive
• liveusb-creator-x.x.zip

How to create a Fedora Flash Drive from Windows:

1. Download the Fedora liveusb-creator-x.x.zip
2. Extract the liveusb-creator-zip to your PC
3. Navigate to the liveusb-creator folder and click liveusb-creator.exeto launch the tool
4. Even though the USB Fedora creation process is straight forward, here is a quick rundown of all the steps involved:
   1. Select either to Use existing Live CD or Download Fedora
   2. Set the Target Device to point to your USB flash drive
   3. Move the Persistent Overlay slider to set the capacity to use for the persistent image
   4. Click Create Live USB to begin the creation process

A progress bar will indicate the progress of your USB Fedora creation. Once the process has finished, simply restart your PC and set your System BIOS or Boot Menu to boot from the USB flash drive & then Installation will start.So enjoy guys with new OS.
If all goes well, you should now be booting into your own portable Live USB Fedora 14 or 15.