Free Vista Defrag

I just ran into a good vista defrag program that is completely free, even though I love OO Defrag and never would change this software here should work great, if your not into cracking OO Defrag check this baby out :)

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Link to Auslogics Defrag site here
In the context of administering computer systems, defragmentation (or defragging) is a process that reduces the amount of fragmentation in file systems. It does this by physically reorganizing the contents of the disk to store the pieces of each file close together and contiguously. It also attempts to create larger regions of free space using compaction to impede the return of fragmentation. Some defragmenters also try to keep smaller files within a single directory together, as they are often accessed in sequence.