At some point you may want to disable the touch screen to strictly use your Windows 8 tablet/laptop as a PC with the classic mouse and keyboard combo. There's no built-in option to turn off the touch screen, but Into Windows has a quick workaround.
Here are the steps:
- First, go to the device the manager by opening the "Charm Menu" and search for "Device Manager". If you don't see it, change the search filter to "Settings".
- Once in the Device Manager, expand the tab showing your computer name. Then find "Human Interface Devices" and expand it.
- You should see several "HID-compliant device" listings. Some PCs will call it an HID-Compliant Touch Screen, but yours may vary -- if you don't have a touch screen option, you may have to try each HID Compliant ____ until one works. When asked if you want to disable the device, select "yes". That's it! The touch screen on your Windows 8 device should be disabled.
To enable it again, just follow the same steps, but select "enable" instead. One important thing to remember: Once the touch is disabled, you'll need a keyboard and mouse paired with the device to undo it.
How to Quickly Disable Touch Screen Input in Windows 8.1 [Into Windows]