R. C. White said:
?Hi, John.
I agree with Ken Blake: You don't really need any defragger except what
is built into Win7.
Vista and Win7 do a much better job than prior Windows versions of
keeping themselves defragged.
But if you want to use a third-party defragger, have a look at
PerfectDisk 11 from Raxco (
http://www.raxco.com/?products/downloadit/
). The price starts at about $30; a free trial is available. I've been
running my free copy of PD11 (and its predecessors) for several years
and it (a) works well and (b) stays out of my way in the background
except when I click it to see its reports.
RC
There is one advantage to PerfectDisk. It allows moving both data
and metadata files, away from the end of the disk. If you want to
shrink a partition by more than 50%, and have way more than 50% free,
PerfectDisk can help you when you go to use the Shrink option in
Disk Management.
I had a 250GB partition, and managed to shrink it to 30GB, using
repeated runs of PerfectDisk (30 day trial) and the shrink option.
The Windows 7 defragmenter, doesn't defragment large files. Files over
a certain size are not defragmented. The built-in defragmenter only
handles smaller files. And it does a thorough job on the smaller files.
For a test, I filled an external USB drive with 40GB of artificially
fragmented files (generated by a C program), and it did defragment
all of them. I didn't test the threshold, by making bigger and bigger
files. It could be, around 50MB or larger files, won't be defragmented
by the built-in defragmenter.
The only reason I'd recommend something like PerfectDisk, is if
you wanted to do partition shrinkage, and needed almost all the
structures on the disk, "moved to the left".
HTH,
Paul