Smart Defrag will help you to defragment the hard drives.

Features:

Automatic defragmentation in the background.

Specially designed for modern, large hard drives.

Ability to place the frequently used files and directories into the fastest area of the disk.

Ability to decide when and how to start defragmentation.

Note that the program comes with the Yahoo toolbar, which you can choose not to install.

• Download Smart Defrag
• Project site

Select Windows Freeware