To defrag a laptop, click start menu, programs, accessories, system tools and select disc defragmenter. Select the drive you want to defrag, normally C: and click OK button. Once done, restart and use your laptop as normal.
1. Click "Start" and select "All Programs. 2. Click "Accessories" and choose "System Tools. 3. Choose "Disk Defragmenter. 4. Select the hard disk that you would like to defrag and click "Defragment Disk. 5. The process could take several hours, www.ehow.com
Well this is Microsoft`s advice on maintaining a Windows computer, defrag is tip 3 and you will have to select your version of Windows to get the proper advice; http://www.microsoft.com/atwork/maintena… You need about 15% free disc space for it to be uk.answers.yahoo.com