I love my HP Envy, but I hate the way that the touchpad settings keep switching back after a few weeks.
This is due to the latest Synaptics touchpad drivers being loaded and it overwriting the settings. This is particularly noticeable as the scroll direction switched to "reverse"... honestly Synaptics why would you force reverse settings on anyone when it's obviously not the "right" way!
Anyway, enough about my pet peeves... how do you fix it.
Simple!
Open up regedit and go to:
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Synaptics\SynTP\Install
Change the setting DeleteUserSettingsOnUpgrade from 1 to 0#
Exit out of regedit, and that should be all you need to do. Your settings will not be overwritten when you get a new version of the touchpad driver.