I use a program called Gparted. You can download it for free, and it works really well. You have to download the image file, and then burn it to a cd. Remember to choose 'burn image' instead of burn file. Once you have burnt the image to a cd, you can set your boot setting to cd and restart your computer with the image in the drive. If you have no idea how to go about this, I suggest you get some help once you have made up the cd. You can do some serious mischief to your system if you make an error. lots of luck.