Start Killer frees up space in your taskbar by hiding the Start menu button. Given the nature of the new taskbar along with the Windows Key on your keyboard, hiding the Start Button isn’t too bad of an idea.
Be sure to tweak the settings of Start Killer once you have it installed so you can configure it to run on Start Up. There are also a few keyboard shortcuts you should know about so you can access Start Killer even if you hide the icon in the system tray. If all seems impossible, ending the process StartKiller.exe will restore the Start button. Download Start Killer here. (story Link)