Relate to: System Management, Console, Device management

Default location: %WinDir%\System32\Defrag.exe

Useful information about: Defrag.exe

Description: Disk Defragmenter Module

Version: 6.0.6000.16386 (vista_rtm.061101-2205)

Size: 223744 (218K)

MD5: FA9713D6409FD4FF58DD50F3F0E849AF

Defrag.exe locates and consolidates fragmented files on local volumes to improve system performance.

Syntax: Defrag.exe -a [-v]

Defrag.exe [{-r | -w}] [-f] [-v]

Defrag.exe -c [{-r | -w}] [-f] [-v]

Parameters:

Value Description

Specifies the drive letter or mount point path of the volume to

be defragmented or analyzed.

-c Defragments all volumes on this computer.

-a Performs fragmentation analysis only.

-r Performs partial defragmentation (default). Attempts to

consolidate only fragments smaller than 64 megabytes (MB).

-w Performs full defragmentation. Attempts to consolidate all file

fragments, regardless of their size.

-f Forces defragmentation of the volume when free space is low.

-v Specifies verbose mode. The defragmentation and analysis output

is more detailed.

-? Displays this help information.

Examples:

Defrag.exe d:

Defrag.exe d: \vol\mountpoint -w -f

Defrag.exe d: -a -v

Defrag.exe -c -v

Read more: http://support.microsoft.com/kb/283080/e...

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