The Windows 8 Start Screen provides a central location where you can access information and email, browse the web, stream videos, view photos, and access your social media websites.
To view apps (application), use the scroll bar at the bottom of screen.
To open an app - Click or tap a Start screen app. To quickly return to the Start screen, press the Windows logo key on your keyboard.
Charms are used to access commonly used tools. They are hidden until required. When summoned, the Charms menu displays at the right side of screen. To display the charms - point mouse pointer to the upper-right or lower-right corner of the screen. Alternatively, hold down the windows logo key on keyboard and press C.
Find a list of all apps from the Start screen - Right-click on the Start screen, then click All apps. You can also pin apps to the Start screen and unpin apps from the Start screen. Or uninstall apps from this screen. Right mouse click on app to display these options.
Switch between open apps - The open apps area of the screen allows you to switch between open apps. Point mouse pointer to upper-left corner of screen and click. Or drag mouse pointer down to show a list of open apps.
Happy navigating Windows!