Touch input is a feature that enables the computer screen to respond to the touch of your finger. If touch input is available on your computer, you can use your finger to do many of the things that you do with a mouse or a tablet pen. For example, you can move the pointer on the screen, select objects, and open files and folders.
Open Pen and Input Devices by tapping the Start button , tapping Control Panel, tapping Mobile PC, and then tapping Pen and Input Devices.
If the Touch tab appears, touch input is available on your computer.