I use Defraggler regularly, normally on a quick defrag.
It defrags OK, but the file list shows files still fragmented. I then defrag the file list and that works OK where the fragmented files are then defragged.
Question ?
WHY does Defraggler not do its job properly in the first place and not leave fragmented files to be done separately ?
Defragmenting a disc and defragmenting files are (slightly) different things.
Defraggler will do either, but doing both is a bit counter productive.
Defragmenting a mechanical disk will try to fill up the disc clusters to get all files together in 'filled up' clusters. That means that to fill up empty space in those clusters some files have to be split (fragmented) - so much to fill a cluster and the rest in another cluster.
Defragmenting files will keep the files together without splitting them up, but that means that not all clusters will be full to the top.
It's a case of choosing which you want to do.
If you are short of disc space then defrag the mechanical disc to free up disc space.
If you want files to open slightly faster (you won't even notice) then defrag the files.
With the larger drives fitted as standard these days defragging has become much less important that it used to be with small capacity drives.
<div class="ipsQuote_contents">
<p>
Defragmenting a disc and defragmenting files are (slightly) different things.
</p>
<p>
Defraggler will do either, but doing both is a bit counter productive.
</p>
<p>
Defragmenting a mechanical disk will try to fill up the disc clusters to get all files together in 'filled up' clusters. That means that to fill up empty space in those clusters some files have to be split (fragmented) - so much to fill a cluster and the rest in another cluster.
</p>
<p>
Defragmenting files will keep the files together without splitting them up, but that means that not all clusters will be full to the top.
</p>
<p>
It's a case of choosing which you want to do.
</p>
<p>
If you are short of disc space then defrag the mechanical disc to free up disc space.
</p>
<p>
If you want files to open slightly faster (you won't even notice) then defrag the files.
</p>
<p>
With the larger drives fitted as standard these days defragging has become much less important that it used to be with small capacity drives.
</p>
</div>
Thank you so much for that comprehensive reply. You have explained all I need to know.