How to Defragment Your Hard Drive
Click the Start Button
Click All Programs
Click System Tools
Click Disk Defragmenter
Select the Drive to Analyze. FYI you can only Defrag or Analyze one Drive at a time
Click Analyze When finished it will tell wether the hard drive needs to be Defragmented or not
Click the Defragment button to start the process. The process can take 30 minutes to a hour.