Same problem really getting me angry as I cant find a solution also.

Still no luck.. No idea on what to do now

Okay downloaded the driver and and it was fully installed so I proceeded to turn off smart sense but it did nothing.

HP Pavilion Notebook - 15-p100dx (ENERGY STAR)Model #: J9H84UA

When I am trying to set it all up it says synaptics device not found?

Yes I use synaptics.

Okay so I had this problem in windows 8.1 but fixed it by turning off smart sense which still has the same function in windows 10 but it did not work. I am looking so find solutions online because...

I had this problem in windows 8.1 also but fixed it by turning off smartsense.. But in windows 10 in did absolutely nothing