Wubi will allow you to install and uninstall Ubuntu as any other application. If you heard about Ubuntu and Linux, if you wanted to try them but you were afraid, this is for you.
Ubuntu comes fully loaded with most commonly used applications, including a full office suite compatible with MS office, image editing software, picture management software, media player, games, browser, email client, IM and video conferencing software.On top of all of this, you can easily install additional software, from a list of over 20,000 applications.
* 256 MB RAM
* 1 GHz or faster Intel/AMD processor
* A minimum of 4GB disk space