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Defrag or free-space defrag first?

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I want to defrag my HDD (it's at 28% fragmentation) and I want to defrag the free space to prevent future fragmentation. Should I run a regular defrag first and then defrag the free space or should I defrag the free space first and then do a regular defrag? Or does it not matter what order?

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Posted (edited)

you can't really prevent future fragmentation.  Windows starts fragmenting immediately after a defrag (maybe even during it).  28% fragmentation is very low (with 20% being an optimal fragmentation).


However I believe it's files then freespace but don't fully recall as i've let windows own defrag work since windows 7

Edited by Nergal
more than just arguing my point
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with defraggler...

try the "file list" -defragmentation - relatively fast with good fragmentation-result

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