Description of Percent Complete Values in Disk Defragmenter

Article translations Article translations
Article ID: 131648 - View products that this article applies to.
This article was previously published under Q131648
Expand all | Collapse all


This article describes the meaning of the values in the Percent Complete status bar when you are running Disk Defragmenter.


The following table describes the meaning of the values in the Percent Complete status bar:
   Value      Description
   0%-4%      Defrag is running a special version of ScanDisk for Windows
              to check for errors before doing anything with the disk.

   5%-9%      Defrag is making a "road map" of the best locations for the
              data on the drive which it will use when actually moving the

   10%-100%   Defrag is moving the data on the disk.
On a drive compressed with DoubleSpace or DriveSpace, the following meanings apply:
   Value      Description
   10%-49%    This is the first optimization pass through the compressed

   50%        Defrag is checking the internal compression structures of
              the drive.

   51%-100%   This is the second and fastest optimization pass on the
              compressed file.
If the percentage jumps from 0 to 5 percent without any drive activity, the Check Drive For Errors option is probably not enabled.

The ScanDisk activity from 0 to 4 percent occurs only when Defrag is started. The ScanDisk activity is not repeated if Defrag is forced to restart because of disk activity.


Article ID: 131648 - Last Review: November 15, 2006 - Revision: 1.1
  • Microsoft Windows 95
kbdefrag kbdiskmemory kbscandisk KB131648
Retired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

Give Feedback


Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from