ubuntu dual booting with unetbootin/wubi

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http://ubuntuforums.org – Hi , I am pretty new on ubuntu, I have previously installed ubuntu on my netbook and after trying many distros including ubuntu forks such as lubuntu , I have decided to come back to ubuntu since it just work out of the box Now I want to install ubuntu on my main laptop , as a secondary OS dual booting with windows 8, I tried using unetbootin installing directly to the hard drive everything went fine during the install. However once I boot in to ubuntu I get the install ubuntu 13.04 icon/program. is there any need to do this? I tried and I can't continue the process since my install media (Hardware)