If you're new to Windows 8 getting started can be confusing. This free lesson offers tips on how to get started with this operating system.
Start screen apps are different from the "classic" Windows apps you may be used to. Apps fill the entire screen instead of opening in a window. However, you can still multi-task by opening two apps side by side.
When dragging the app down, it may look like it's "stuck." However, just keep moving the mouse down until the cursor gets to the bottom of the screen, and the app will then close.