A touch screen is a great feature on a laptop if you like to use your finger instead of a mouse to navigate the operating system. If your laptop has a touch screen functionality, its functionality will automatically be turned on, or enabled, out of the box.
If for some reason your touch screen is not working, you can try manually enabling it. You can also try calibrating the touch screen if it is not working correctly.Or, if you want to disable the touch screen altogether, that can also be done.
Note: There are no Apple Macbooks or laptops that support touch screen.