To add the "My Computer" folder to the Windows 7/Vista taskbar, right-click on the taskbar and select "New Toolbar" from the Toolbars menu. Select the Computer icon from your file explorer and it will be added to the taskbar. Clicking the Computer folder on the taskbar will allow you to browse through all your drives and desktop by clicking the pop-up arrows. This process also works for adding the Desktop folder to the taskbar.