disk defragment

[Guest]

While I was downloading sp2 my computer crashed and I had to reinstall
windows xp and everything else. Now I have most everything going but my disk
defragmentor will not defrag all the files and leaves alot of files fragment.
Any ideas.

 

[S.Sengupta]

I guess you have NTFS drive.
When a file is open for write access, NTFS attempts to preallocate
additional space to help prevent fragmentation as the file grows. When
you defragment a volume, Disk Defragmenter does not allow the extra
space to be moved and consolidated while the file is open. The extra
space is shown as additional fragments in the report.

Suggestion: Close the file to release the additional fragments and
reduce the size of the file. The Size on disk value (right-click the
file and then click Properties) reports the size that you would obtain
if you closed the file.

you disable antivirus/firwall what ever may be running in th­e background
before strating the disk defragmentation.
Analyze volumes before defragmenting them. After analyzing a­ volume, a
dialog box tells you the percentage of fragmented files and ­folders on
the volume and recommends whether to defragment the volume.
A volume must have at least 15% free space for Disk Defragme­nter to
completely and adequately defragment it.If a volume has less­ than 15%
free space, Disk Defragmenter will only partially defragment­ it. To
increase the free space on a volume, delete unneeded files o­r move them
to another disk.

regards,
ssg MS-MVP