What is defrag.exe?

A. One of the problems with the welcome addition of the disk defragmenter in Windows 2000 is that it has no command-prompt equivalent. As a result, you can't easily schedule the defragmenter to run. To address this problem, Microsoft included defrag.exe in Windows XP for command-level disk defragmentation.

An example analysis execution shows

   C:>defrag d: -a   Windows Disk Defragmenter   Copyright (c) 2001 Microsoft Corp. and Executive Software   International, Inc.   Analysis Report   6.91 GB Total, 6.73 GB (97%) Free, 2% Fragmented (5% file   fragmentation)

The command format is

   defrag  [-a] [-f] [-v] [-?]   volume drive letter or mount point (d: or d:volmountpoint)   -a Analyze only   -f Force defragmentation, even if free space is low   -v Verbose output   -? Display this help text