Freeware: Defragmentation

WinASO RegDefrag 1.2 "WinASO RegDefrag" performs physical defragmentation of the Windows registry file. After defragmentation your registry will acquire linear structure which will reduce application response time and registry access time.

Auslogics Disk Defrag 1.4.10 Auslogics Disk Defrag will defragment your computer disks and speed up your system. It's designed for fast optimization of today's modern hard disks. Get the maximum performance out of your expensive hardware investments. And it's absolutely FREE.

SpeeDefrag 5.2 Wanna defrag you hard disk fast Just download SpeeDefrag and experience the difference. SpeeDefrag is a program which restarts your computer and runs only defrag.exe with optimized windows settings. This makes defrag work faster.

DPAN 1 The Disk Performance Analyser for Networks is a stand-alone utility that detects and reports fragmentation-related performance loss on networked systems. It provides this never before available, easy to use functionality all from a single location.