Touch Freeze is a free Windows utility that allows you to automatically disable touchpad on the laptop when you start typing. With this utility you can prevent such situation and type in peace.
Ideally, touchpad can be annoyance while typing as your hand might brush touchpad area and change the cursor position. This utility sits on the system tray and you can right click its icon to access option like: load at startup, about and exit. So no more messing as a result of touchpad while typing on the laptop.