I apologise if this has been asked before but my daughters 'HP Envy Spectre XT Ultrabook' has recently started having issues with the touchpad in that it jitters all over the screen, she upgraded to Windows 10 home in November but it has only been an issue recently. I have tried upgrading the Synaptics drivers with no luck. Then tried a full windows 10 reset and it seemed to initially be fine again until all the updates came through now its jittering again.
The machine is vanilla the only things I had to do were manually install the sound card drivers and installed Spotify, I'm going to have another look on the weekend but if anyone has any bright ideas I'm listening.
Thanks in Advance.
FYI - Plugging in a Mouse solves the problem.