HOW TO: Speed Up Your Notebook Computer (Laptop)
This is the first in a series of articles designed to show you how to improve your experience with 
various kinds of mobile computers.
It is difficult to impossible to upgrade the components in most notebook computers. So, when a notebook computer runs slowly, if you don’t take steps to improve its performance, often your only option is to toss it out and get a newer faster one. That’s no fun. So, we show you how to improve notebook performance by better managing software and background services as well as the condition of your disk drive.
All of this reduces the amount of work your notebook’s CPU and memory must do, thus speeding up remaining applications and services. This is especially important when your notebook is running on battery power, because on battery, power management software can reduce CPU speed by around one-half and thus make the fight between applications and services for CPU access even more of a knock-down-drag-out affair. How To Speed Up Your Snail-Slow Notebook Computer | MobilityGuru