I have a pesky issue that I cannot solve. HP Envy 360 laptop, running Windows 10. I like the machine, but it has become ill. Suddenly and without warning or other changes, I get "ghost circles" on the screen. I have come to recognize them as a symbol showing that you've touched the screen (which I have not done; I don't use the touchscreen feature). Depending on where on the screen, these things start up programs, and interfere with my use of the touchpad mouse. I looked it up on a second computer, and found advice to find the Windows Device Manager, then Human Interface Devices, then remove the touchscreen driver. This did not fix the issue. Can anyone help? This has rendered the machine unusable, but I really don't want to just throw it away. By the way, I ran Spybot Search & Destroy, so I don't think it's a virus. Thanks in advance!