Hi,
I'm deeply sorry to tell you that you can get your HP Split and throw it away, because you won't find a solution for this problem, it is not a driver problem, corrupted file or anything else the HP Experts are going to tell you... if you google about this problem you'll see LOTS of people are experiencing exactly the same problem.
Myself included .. and I've been trying a solution for weeks now and noone can help, because the simple fact it is a hardware design issue...
If you see, you have two parts of the laptop, the screen with everything inside and the "dockstation" that works with the touchpad, keyboard, etc...
If you try to use the TouchPad or the earphone jacket and try to touch or move gently the screen you'll see both will start to fail ... the jack that connects both parts were poorly designed and can't handle the possibility of a sudden movement... it will lose contact for a few miliseconds, time enough to force Windows to shutdown the peripherical, in our case, to stop TouchPad.
I found a "work around" for the TouchPad, you can go to Device Manager (windows key + x and then m) and unninstall the Synaptics TouchPad including the driver and go back to a generic mouse driver from Microsoft, your problem won't disappear, but it'll happen a lot less than before.
I complained this on other HP foruns, on their helpdesk ... and none of them will tell this is a known and critical issue affecting ALL the HP Models.
Sorry to inform you that, but HP is not concerned if're you happy after you bought the computer.
Leo