If you want to disable touch screen in Windows 8, then you can follow these steps. a. Press Windows key + X and select Control Panel. b. Go to Hardware and Sound and click on the Pen and Touch option. c. In the Pen and Touch window, tap on Touch tab.d. Uncheck the box for âUse your finger as an input deviceâ. had to settle for an Acer Aspire with Windows 8 and touch screen. Now the screen is cracked in the lower left corner, but the video still works; except for the touch part. It is machine gunning hits all over the screen, opening, closing, enlarging, modifying, well just mayhem, and I'm not touching the thing.