A newer version of Defraggler is available.Or, Learn More About Defraggler
Full user review
"Does what it says, defrags your computer"
I have not noticed too much of a speed difference between this programs defrag of my comp versus my copmuter's built-in defragger, but nonetheless, its another great program from Piriform that gets the job done.
The graphic that shows the files is a little confusing, but doesn't really matter.