A certified Windows Precision Touchpad is a new class of input devices that provide high precision pointer input and gesture functionality. By default, these devices generate ultra-high precision scroll wheel messages for desktop application consumption.
The August 12th 2014 update rollup from Windows Update for Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2 introduced a new feature for precision touchpads by adding the Double-tap and drag setting.
If this setting is turned on, you will be able to right click by clicking or tapping on the right touchpad button.
If this setting is turned off, then when you click or tap on the right touchpad button, it will perform the same as a left click.
This tutorial will show you how to turn on or off the allow right-clicks on the touchpad feature for your account in Windows 8.1 and Windows RT 8.1.