I have a hp Probook 4410s with Windows 7 as default OS. For the last two years I have Ubuntu side by side and the latest version was 11.10. I wanted to upgrade to 12.04 by installing wubi, which didn't work (in fact, only thing happened was removal of previous version of Ubuntu). Later I downloaded an iso file and burnt it onto a CD. The laptop didn't start while booting with installation CD. The screen turned blank after some time and that's all while I was able to install 12.04 on my desktop (Win XP, SP-3) with the same CD.
How should the iso be corrupt when it installs Ubuntu 12.04 on a desktop??