The very first implementation of the Start menu in Windows 95 was based on the concept of cascading submenus. But since Windows XP, Microsoft has constantly changed the behaviour of the Start menu, added new features and a new look. The most recent version of the Start menu which we have now in Windows 10, combines the Start menu ideas from Windows 7 with the Start screen of Windows 8. It includes live tiles as well as classic menu items. You might be interested in disabling submenus for the Start menu so that items won't be expanded automatically when you hover over them with the mouse. Here is how to enable or disable those submenus.