While you can always use the ‘Auto hide’ feature to hide the taskbar and make it appear only when you take your mouse pointer down to the bottom of the desktop, Hide Taskbar lets you hide only the taskbar, and not the Start Button, with a click.

Simply download and run the portable app. Use hotkeys Ctrl+Esc to hide or un-hide the taskbar.

And why would you require such a program? The reason could be well, you love a clean desktop and don’t want even a taskbar to mar your wallpaper or maybe you are working on something and you want to suddenly hide all the other minimized windows or well it could be simply because you think it looks cool to hide and un-hide the taskbar.