Follow the directions below to close any running apps on your Windows 8 tablet or PC:
- Swipe or click from the left.
- All open apps will appear on the left-hand side of the screen.
- Drag app to the center of the screen, then drag it to the bottom of the screen.
- The app icon will flip over, which means the app is closed.
Visit the official Microsoft site for additional Windows 8 support.