By default, an HP laptop with a TouchSmart display should always be in touch-screen mode. This isn’t an option you can turn on or off in Windows 8. If your screen has stopped responding to your touch, HP recommends shutting down the laptop and cleaning the screen. If the TouchSmart display still doesn’t respond when you turn the laptop back on, reconfigure its settings. If this fails to work, you can try a system restore or a system recovery. Writer Bio
