[ubuntu] Please, Help Me Get Rid of Windows 8

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http://ubuntuforums.org – Recently, I bought a HP 2000 Notebook PC and it came with Windows 8 pre-installed on it. And I want to get rid of Windows, but for the life of me, I can't get this laptop to work with me. I downloaded Ubuntu 12.10 (64 bit) and burned it to a dvd. I changed the boot order, so that basically everything except for the OS is suppose to boot first, but this laptop still won't boot the dvd. The laptop sounds like it's running the dvd, but then goes to the Windows 8 screen. How do I get my laptop to boot the dvd, so I can install Ubuntu and more importantly get rid of Windows? (Hardware)