Losing all of your data due to a hard drive failure is potentially disastrous, especially if you don’t have a backup to hand. CloneZilla helps you avoid these problems in two ways: by creating an exact copy of your data to a second hard drive in order to back it up, and by allowing you to copy data from a failing hard drive to a new drive before you lose it. The tool runs from a bootable CD, so you don’t even need to be able to load Windows in order to use it.