These are the best and easiest ways to speed up windows 7 computer or laptop. 1. Try the performance troubleshooting 2. Uninstall unwanted applications and software 3. Disable start-up items 4. Defragment the hard disk 5. Clean up the hard disk regularly once a week 6. Turn off visual effects 7. Increase the virtual memory 8. Lastly, you can install more RAM