Disk Defragmenter window
The Disk Defragmenter window consists of two main areas. The upper portion lists the volumes on the local computer The lower portion displays a graphical representation of the amount of fragmentation on the volume. The colors of the display indicate an approximation of the volume's condition:
| • | Red areas represent fragmented files. |
| • | Blue areas represent contiguous (nonfragmented) files. |
| • | White areas represent free space on the volume. |
| • | Green areas represent unmovable files, which cannot be relocated by Disk Defragmenter. On file allocation table (FAT)/FAT32 volumes, the green areas are typically represent paging files, which are also called swap files. However, on volumes formatted using the NTFS file system, they may also represent space used by the NTFS Change journal and the NTFS logfile. |
Disk Defragmenter does not attempt to consolidate all of the free space on a volume. Although free space fragmented into hundreds of pieces adversely affects performance, free space split into a few pieces does not. Having all of the free space consolidated in a single location provides very little performance benefit.
By comparing the Analysis display to the Defragmentation display, you can view the improvement in your volume after defragmenting it. For more information see Analysis and defragmentation displays and reports
For step-by-step instructions describing how to analyze or defragment a volume, see To analyze a volume and To defragment a volume
