Disk fragmentation leads to system slowdowns, PC crashes, slow startups and shutdowns. Auslogics Disk Defrag is designed for fast optimization of modern hard disks. Use it together with Auslogics BoostSpeed to get the top performance out of your expensive hardware. Disk Defrag is absolutely FREE.
We found the program fast, even on older XP systems. A handy HTML report is prepared after each defrag session. ... Fantastic utility far superior to Windows Disk Defragmenter.
CNet Reviews

Vista/XP/2000/2003, 32-bit and 64-bit and dual-core CPU supported.

More Info: Auslogics Disk Home Page

Download addon Auslogics Disk Defrag v1.4.16.308