Inncorrect Andy on the defrag issue in Windows 2000. Obviously you don't pay attention to the report afterwards that tell you what was not defragged.
also some backup from Microsoft
Microsoft Windows 2000 includes a built-in Disk Defragmenter tool. This tool excludes certain files because of known issues with moving these files. Also, files that are locked for exclusive use by another process are skipped.
Analyze Operation Suggests Defragmenting Disk Multiple Times
The information in this article applies to:
Microsoft Windows 2000 Server
Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Professional
This article was previously published under Q229850
SUMMARY
If you use the Disk Defragmenter tool to defragment a disk that is highly fragmented, there may be insufficient free space to effectively defragment the files. If this condition exists and you perform a defragment operation and then immediately perform an analyze operation on the same volume, Disk Defragmenter may report: "It is recommended that you defragment this volume" even though you just completed a defragment operation. This continues until there is enough free space to effectively defragment the volume.
In this case, you should temporarily move the most fragmented files off the volume and defragment again. If the condition persists, temporarily move a few large, contiguous files off the volume. This temporary measure gives Disk Defragmenter some contiguous "working room" that it needs to complete the defragmentation process on the rest of the volume. This also allows Disk Defragmenter to consolidate the free spaces on the partition, increasing the possibility that the temporarily moved files can be moved back to the partition into contiguous space.
MORE INFORMATION
Another condition that may cause the defragment operation not to succeed is a highly fragmented paging file. An active paging file is held open for exclusive use by Windows 2000. Disk Defragmenter cannot defragment any file that is open for exclusive use. There is, however, a way to defragment the paging file, or at least reduce the degree of fragmentation for the paging file.
