If you have a recent HP laptop, it likely came with Synaptics software for the TouchPad (trackpad, mouse, etc.). This software enables your trackpad do more things than just move the mouse and select objects on screen. This is even more true if you have Windows 8. HP thinks you might want to emulate touch on a non-touch device and they ship with these settings defaulted to on. The problem with this is that some of these features will drive you insane.
To fix this, you need to go to the control panel. In Windows 8, at your Start screen, just start typing Control Panel and it should turn up in your search. From there, in the Hardware and Sound section you'll see the Synaptics applet. Click on that to run it. There are a ton of options. To its credit, Synaptics does include little animations that indicate what each option turns on or off. Click on each one to become familiar with what it does and then make your changes as needed. Some of the options have a settings menu of their own which is indicated by a gear icon that shows up when you click to select that option.
The things I always turn off are "Enable Edge Swipes" which mimics swiping in from the edge of your screen to bring up the Charms bar in Windows 8 (HATE is not a strong enough word for that one.) Another is "Pinch Zoom" because it just gets in the way. Also, under the tapping menu, "Tap again and drag". If you have Tap again and drag enabled and you try to use a really interactive site like Google Street View, you will want to throw your laptop across the room. Just turn that off, you'll thank me later.