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Full user review
"Destroyed the data on my HD"
The defragment worked a number of times before finally ruining my HD
Drive on my MacBook Pro became corrupt and unbootable after defragmenting with this tool, which is apparently common.
None of the other 'features' were useful over the years
Stay away from this, just keep your HD with at least 15% free space and the Mac file system automatically keeps your drive from becoming fragmented.