Smart Defrag 2
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Full user review
"Only works when it's in the mood."
Easy to use and has a boot-time defrag option.
DOES NOT ALWAYS WORK.
Smart Defrag worked perfectly on my old XP system, but since upgrading to a Win7 laptop I have found that Smart Defrag only works about 20% of the time. When I load it up and click on either 'defrag' or 'analyse' (it doesn't matter which) the chances are it will act as if it's about to start, but then it just stops and sits idly again.
Annoyingly, I can't even seem to find an easy link to tell IOBit about the problem.
This might work on your system, but it doesn't work properly on mine.