The laptop:
HP Envy TouchSmart 15 Notebook PC (15-j173cl)
Windows 8.1 Pro
The problem:
I use an external monitor, so my laptop is usually shut. Randomly, my touch screen THINKS something is touching it, which disrupts whatever I'm doing. I would like to disable the touch screen completely, as I do not use it at all.
I thought maybe the latch wasn't closing properly, but the screen resolution changes when I shut the laptop, so it KNOWS it's closed and switches to the proper resolution for my external monitor, but it DOES NOT disactivate the touch screen, and some dirt or something is touching it, changing where my mouse is pointed, where I am typing, etc.
I have tried cleaning the screen and keyboard with compressed air.
The problem happens randomly; sometimes when I CAD for the day, sometimes after hours of working.