I want an operating system of which I can make a live cd/dvd . I want something free with hard disk formatting abilities. If you ask why it's because I have an old hdd and as far as I'm aware my optiplex 780 only has one hard drive slot. (I know it's not a slot but I couldn't figure out what the correct word was). I was thinking something like Ubuntu or lubuntu or ReactOS. Thank you for your time