As you can see, Classic Shell is a great program that allows you to add the Start Menu back to Windows 8 without losing any functionality.

Open Shell, originally known as Classic Shell, is open-source software that allows you to replace the standard Start Menu on Windows 10 and Windows 8.

Windows only: Start menu replacement utility Classic Shell adds back some of the missing features in Windows 7 or Vista that used to exist in XP—like the Classic-style Start Menu.