Auslogics Disk Defrag Touch - The smart way to defragment a touch-screen computer running Windows.
PassMark Fragger - Passmark Fragger lets you frag and defrag files in a controlled environment according to...
UltraDefrag - UltraDefrag is an open source disk defragmenter for Windows.
SpeeDefrag - SpeeDefrag is the exclusive freeware program, which optimizes Windows defrag.
Defraggler - Defraggler, the award-winning hard drive defrag tool from the makers of CCleaner. Optimize your hard drive and free up space. Download the latest version for free.
PerfectDisk - PerfectDisk reduces total IOPs by 15-40% and reduces disk latency up to 80%.