My soon-to-be wife recently purchased a HP Envy M6 laptop because it fits her needs of blogging, listening to music, photos, social media and watching video (she isn’t a gamer). However, she soon encountered issues with the trackpad.
It seems HP and their middle-line laptops have some history when it comes to trackpads becoming unresponsive and buggy. This is the model of laptop with the A10 processor, 6gb of ram and 15.6" touch screen.
After some investigation and playing around, I tried installing new drivers for the touchpad by Synaptics. It seems the drivers that ship with this thing are outdated and buggy in the shipped version of Windows: Windows 8.1.
Simply download the appropriate drivers here from the Synaptic website. Install them and then restart your machine. The touchpad should now be more responsive and hopefully fix your issue.
Update:
The above fixes still stand for Windows 10 as well. After recently upgrading the touchpad appears to have become even more stable and responsive in Windows 10.