Visit Site: Auslogics Disk Defrag Free

Cost: Free (lite)

Comments: Free and premium versions available.

Description: At a click of a button Auslogics Disk Defrag Free will quickly defragment files on your hard drive, optimize file placement and consolidate free space to ensure the highest data access speed possible.

Visit Site: Defraggler

Cost: Free

Comments: Free disk defragmentation program.

Description: Use Defraggler to defrag your entire hard drive, or individual files – unique in the industry. This compact and portable Windows application supports NTFS and FAT32 file systems.

Visit Site: Smart Defrag 2

Cost: Free

Comments: Free disk defragmenter.

Description: It is known that disk fragment has been a primary cause of slow and unstable PC performance. Smart Defrag 2 is such a FREE disk defrag tool that provides extremely fast and efficient defragmentation to your hard drives intelligently for faster file loading and high disk performance.