Artful Dodger: Dual boot is installing the 2 system along side each other> when you install Ubuntu it will ask you all the questions, as in do you want to format the disk and just have Ubuntu OR Install Ubuntu along side Windows. Once that is done, your computer will ask you when you turn it on which system you would like to run. The best thing is Ubuntu will let you access any files you have stored in Windows. Sadly Window will not do the same with Ubuntu, well i have not found a way yet lol, maybe toedder knows.