Difficulty: Moderately Easy
Things You’ll Need:
Step1
Download Disk Defrag from the Version Tracker website.
Step2
Install the program and run it.
Step3
Once that is done, select the hard drive that you wish to defrag and click on the "Defrag" button.
Step4
Your Mac will start to defragment the hard drive. You might want to leave the computer on overnight for it to complete its task.