Chosen Solution
I have an HP Pavilion 15z-P200 laptop with the worst, over sensitive touchpad I have ever experienced ! First, the touchpad has no separate left and right mouse buttons. You have to click in the bottom corner so you have to be very accurate where you are clicking ! Second, and even more ANNOYING, the mouse pointer jumps around at random any time your hand is near the touchpad, like when you are typing. I have removed the Synaptics driver with all the “extra features” so the touchpad just shows up as a PS/2 pointing device. The touchpad is “attached” to the top cover/bezel (staked on ?) but can it be replaced with a different touchpad, one with real mouse buttons and that is less sensitive ?
Personally, I’d disable the touchpad completely and use an external mouse, which should be much easier to use. Alternatively, if you hunt around you may well be able to get a spare top cover with touchpad included from a vendor selling laptop spares (generally recovered from tear-downs), or a dead laptop of the same model offered cheaply from which you can cannibalise the top cover. Very little chance of replacing the touchpad with a more convenient one though.
