I have had the same maddening problem for over a year. I have an HP Pavilion dv7 with the Synaptic Touch Pad driver installed. It came pre-installed with my machine. Since I use a wireless mouse, the touchpad driver is over-rode by the Bluetooth driver. Nevertheless, when I'm typing, my cursor would jump away from where I was typing to some other place on the screen. After searching online for the cause of the problem the majority of the explanations centered on the touchpad as the cause. As I stated, the Bluetooth driver (supposedly) overrides the touchpad's driver. I manually uninstalled the touchpad driver, and, to my horror, it (the Synaptic Touchpad driver) would reinstall itself with each reboot/restart. After this went on for months I then got aggressive about it and uninstalled every semblance of Synaptic using the regedit function. It didn't matter. The Synaptic driver found a way to reappear. I tried several aggressive approaches to "killing off" the driver but it always returned. I wouldn't know that it reinstalled itself until I started typing say, in the search box, for instance. I would type maybe three characters and then I'd hear the Microsoft default "dink" which occured when the cursor moved itself out of the search box; or worse, the cursor would move itself to a particular spot on my screen after I began typing; and when I moved it back to where I left off, after a few keystrokes, the cursor would fly to that same particular spot. Anyway, I finally discovered the problem. I located the standard Microsoft mouse drivers in Device Manager. There are a few different iterations. I uninstalled or replaced the one which is signed as default. The problem has not reared its ugly head since.