Quick sidenote to the above. Your hard drive install and data will be fine as long as you don't install the CD or do something out of the ordinary, i.e. poking around your HD partitions. Think of the Live CD as a complete OS the same that is on your HD; you can install stuff store stuff etc, but only until reboot.
Quick sidenote to the above. Your hard drive install and data will be fine as long as you don't install the CD or do something out of the ordinary, i.e. poking around your HD partitions. Think of the Live CD as a complete OS the same that is on your HD; you can install stuff store stuff etc, but only until reboot.