Click on the Control Panel in the apps list. To switch from a right to a left handed mouse, go to the Start screen and start to type Control Panel. This is a great benefit to people with carpal tunnel or just someone who would be more comfortable using a left handed mouse. However, Windows 8 lets you switch from a right to a left handed mouse.
Left click and right click are necessary tools for many features on a device. Computers required that because of the two buttons on the mouse. In the past, computer users put their mouse on the right side of the keyboard.