I have been having a problem with the touchpad (Synaptics Gesture Suite) on my HP 2-in-1 Spectre laptop (Windows 10)ever since I bought it (August 30, 2017). Changing the sensitivity does not help. The cursor is at times not sensitive/fast enough, and at other times is too sensitive, jumping around erratically. Worse, the left-right click frequently brings out the window for the right-click, while the latter is not being touched at all. This happens even when I very strictly try to click in the leftmost lowest corner of the touchpad.
I have a service plan with the Geek Squad/Best Buy and they said that they have heard of such problems before and the touchpad likely needs a replacement. However, this could take "2 to 4" weeks according to them, because the laptop would be sent to their headquarters in Kentucky. They also said that the laptop would not come back "before Christmas" (i.e., 20+ days from now). I cannot be without a laptop for a month, as I need it for work!
So, I paid a computer shop to check it out and they updated various drivers, thinking that this fixed the problem, but it did not. Besides, I can see that the touchpad driver in particular is from August 2017 (perhaps the last version?). One can easily get deceived for a short period of time that there is no problem, if trying just a few standard cursor movements with the touchpad.
I see that there are various touchpad settings other than sensitivity - so, I am not totally sure that all options are exhausted and the touchpad really needs a replacement. The HP virtual support assistant has a suggestion re. an "erratic" touchpad, to increase the PalmCheck setting for Windows 10, from the Control Panel, but their instructions do not match the settings on my laptop at all, and I cannot find such an option.
Thank you in advance for your suggestions.