The corners on your screen are hot corners and give you access to different Windows features. Below, is a brief explanation of each of these corners. Move the pointer to each corner of the display to activate these features / menus.
Bottom Left-hand corner:
The bottom left-hand hot corner of the screen will allow you to access the Start screen, if you are in the Start screen and have the Desktop open, this corner will open the Desktop from the Start screen.
Tip: Right-clicking in the left hand corner will open the power user menu.
Top-left corner of the screen:
Moving the mouse to the top-left corner and then down will display all the apps running on the computer. Clicking and dragging any of these apps to the left or right-hand side of the screen will snap that app to that side of the screen. Each of these open app icons can also be right-clicked to close or snap.
Right-hand side of the screen:
On the full right-hand side of the screen will be given access to the Windows Charms.
Go to Task Manager for Startup items:
You no longer have to run the MSConfig program to change startup items. Startup items now show up in a tab on Task Manager. Simply press Ctrl + Alt + Del and select Task Manager. Click the "More details" tab at the bottom and find the Startup tab at the top.