Disk Fragmentation and System Performance

re: Disk Fragmentation and System Performance

holly stewart — Tue, 16 Oct 2012 06:17:34 GMT

Here you did denote a how to raise of system performance by disk fragmentation. I have little knowledge of disk fragmentation but from your post my knowledge has been refresh...Thanks for sharing.

re: Disk Fragmentation and System Performance

Tim Newton - MSFT — Mon, 12 Sep 2011 15:01:05 GMT

Hi Tammy,

Defragmenting a disk will have no effect on the amount of available space. Fragmented data takes up the same amount of space as contiguous data, it is just broken up into smaller pieces and scattered in different areas on the disk. Defragmenting a disk simply moves the data around so that individual pieces of a file are put back together into contiguous pieces, which makes it faster for the OS to access when needed.

Tim

re: Disk Fragmentation and System Performance

tammy davis — Sun, 11 Sep 2011 01:27:56 GMT

I need to know if this will help me clean up space on my computer for more space?

re: Disk Fragmentation and System Performance

Gustavo G. — Wed, 01 Sep 2010 14:26:28 GMT

Hey, thanks for the info., I didn't know some files in use could not be defragmented.

Would it do any diff:

In 7 it is almost equal, no big deal.

Greetings from BR.

re: Disk Fragmentation and System Performance

ahmed — Fri, 22 Jan 2010 14:45:06 GMT

when do you plan to update this post with windows 7 functionality? It looks like windows 7 has changed a few things in this area.

re: Disk Fragmentation and System Performance

Matt Stone — Tue, 23 Jun 2009 02:04:34 GMT

I also got "Disk Defragmenter Could Not Start" ? how do i fix this

re: Disk Fragmentation and System Performance

Terry — Wed, 25 Mar 2009 03:38:19 GMT

I get the error message: Disk Defragmenter Could Not Start. How do I fix this?

re: Disk Fragmentation and System Performance

TBlenk — Sat, 07 Mar 2009 13:00:17 GMT

I want to get a list of the files that could not be defragmented. With Windows XP it was easy, but with Vista the defragmentation just ends. How do I get the list?

re: Disk Fragmentation and System Performance

CC Hameed — Sat, 07 Mar 2009 02:33:56 GMT

For those having issues with the "Disk Defragmenter could not start", I am assuming that you are running the utility using an account with administrative privileges. If you are, and you are experiencing the issue, please check the following:

1) Verify that you actually have a page file. If the page file is zeroed out, this may cause the issue.

2) Verify that the Logical Disk Manager service is set to Automatic and started

3) Verify that the DCOM Server Process Launcher is started (primarily a Windows XP issue)

4) If you have a third-party utility installed that performs disk defragmentation, this may cause the native Disk Defragmenter utility to fail. In this instance, you will need to re-register the files for Disk Defragmenter:

- from a command prompt change to the %systemroot%\system32 folder

- run the following commands

regsvr32 dfrgsnap.dll

regsvr32 dfrgui.dll

5) If Disk Defragmenter does not work, browse to c:\windows\inf, and find the dfrg.inf file. Right click this file, select Install.

Hope this helps!

- CC

Please see the following non-MS resources:

http://www.andreasroom.com/blog/archive/2004/01/18/defrag.aspx

http://www.theeldergeek.com/forum/index.php?showtopic=28251

re: Disk Fragmentation and System Performance

Amy — Wed, 04 Mar 2009 02:57:01 GMT

Does anyone ever answer these messages? The same question has been posted numerous times...

I keep getting the same message "Disk Defragmenter Could Not Start" no matter which drive i try to defrag.

How do i solve this?