A touch pad is a laptop device that mimics all the functions of a mouse. It allows you to scroll, select and edit content on your screen. With much usage, the touch pad is likely to get dirty. The dirtier it is, the less sensitive it can become. If you have accidentally spilt sticky substances such as soda on your touch pad, cleaning it can improve its responsiveness.
Turn off your computer and disconnect it from AC power. If it is hot, allow it cool down for a few minutes.
Lightly dampen a lint-free cloth in water. Do not use harsh or solutions such as Windex, or anything that is abrasive.
Clean the touch pad with the cloth by rubbing it in a circular motion until it is completely clean.