defrag c: -w -v worked on vista?

when I open an elevated cmd on vista x86, and type... defrag c: -w -v
it worked.

on my win7 x64 it does not.


anyone know why?


~Carmine

logicearth said:

Maybe if you read the help file...

Microsoft Disk Defragmenter
Copyright (c) 2007 Microsoft Corp.

Description:

Locates and consolidates fragmented files on local volumes to
improve system performance.

Syntax:

defrag <volumes> | /C | /E <volumes> [/H] [/M | [/U] [/V]]
defrag <volumes> | /C | /E <volumes> /A [/H] [/M | [/U] [/V]]
defrag <volumes> | /C | /E <volumes> /X [/H] [/M | [/U] [/V]]
defrag <volume> /T [/H] [/U] [/V]

Parameters:

Value Description

/A Perform analysis on the specified volumes.

/C Perform the operation on all volumes.

/E Perform the operation on all volumes except those specified.

/H Run the operation at normal priority (default is low).

/M Run the operation on each volume in parallel in the background.

/T Track an operation already in progress on the specified volume.

/U Print the progress of the operation on the screen.

/V Print verbose output containing the fragmentation statistics.

/X Perform free space consolidation on the specified volumes.

Examples:

defrag C: /U /V
defrag C: D: /M
defrag C:\mountpoint /A /U
defrag /C /H /V

I did read and I got >c/ again

Petey7 said:

What is "defrag c: -w -v" supposed to do?

it allows you to defrag from the command line.

Logic Earth posted the list of switches available.

I don't see a W switch.

Why are you attempting a W switch?

Or a V switch for that matter, if all you want to do is a simple defrag.

The /W switch is described as "Performs full defragmentation. Attempts to consolidate all file fragments, regardless of their size." What this implies is that file fragments larger than 64 mb too are optimized, this is simply not the case in win7 which ignores the larger chunks. You can read all about the benefits of this change in design in this blog.

Disk Defragmentation – Background and Engineering the Windows 7 Improvements - Engineering Windows 7 - Site Home - MSDN Blogs

So, theres no point in using the -w switch.

Bill2 said:

The /W switch is described as "Performs full defragmentation. Attempts to consolidate all file fragments, regardless of their size." What this implies is that file fragments larger than 64 mb too are optimized, this is simply not the case in win7 which ignores the larger chunks. You can read all about the benefits of this change in design in this blog.

Disk Defragmentation – Background and Engineering the Windows 7 Improvements - Engineering Windows 7 - Site Home - MSDN Blogs

So, theres no point in using the -w switch.

cluberti said:

On Vista, defrag -w does a full fragmentation and consolidation regardless of file size - Windows 7's defrag was changed so this is no longer necessary as the previous poster mentioned, so there's no need for a -w option anymore (Win7 does add the -x option, which tries to consolidate free space as well, although you must run -x separate from other options).

thank you guys