Charmed, I'm Sure
For some users, the Start menu was more than a place to run apps by clicking submenus. It also was home to the "Run" command, which could be evoked with a keystroke to run an app in less time than it takes to type the apps name. The same functionality is now available right from the Start screen, where apps can be run simply by typing their name. But, that doesn't work from Desktop mode, which is where a good many keyboard-and-mouse users will find themselves much of the time. To get to the Start screen, one must simply press the "Windows" button on keyboards (or tablets) that are so equipped, which toggles between Desktop and Start screens.