Each corner of the Windows 8 screen is a hotspot that you can click to initiate a shortcut such as switch to the Start screen or an open app. Each hotspot is just a few pixels in size, so make sure your mouse cursor is right in the corner of your screen otherwise you won’t see the thumbnail or when clicking you may get unexpected results. Here’s how to use Windows 8 hotspots.
Top right or bottom right corners
Move your mouse cursor over the top right or bottom right corners of the screen to reveal the Charms menu, where you can access tools such as Search and Settings.
Bottom left corner
1. When on the Start screen, move your mouse cursor to bottom-left corner of the screen to see a thumbnail of the last app – including the Desktop – that you’ve used. Click the thumbnail to switch to this app.
2. When viewing an app full screen or when on the Desktop, move your mouse cursor to bottom-left corner of the screen to see a thumbnail of the Start screen. Click on this to switch to the Start screen.
3. Whatever screen you are on, right-click the thumbnail that appears when you move your cursor to the bottom left corner to display the Power User menu.
Top left corner
The top-left corner hotspot shows thumbnails of the open Windows 8 apps.
Step 1 Move your cursor to the top left corner of the screen to see a thumbnail of the last app used. Click the thumbnail to switch to this app
Step 2 Move the mouse cursor down from the corner to display the App switcher. This shows thumbnails of all the open apps. Click a thumbnail to switch to an app