How to fix Disk Defragmenter problems in Windows XP

Copyright © 2008 Ramesh Srinivasan
Error messages

Symptoms

When you open the Properties dialog box for the local hard disk and then click the Tools tab, one of the following symptoms may occur:

The Defragment Now button is unavailable
When you click Defragment Now, you receive the following error message:

The Disk Defragmenter is not installed on your computer. To install it, double-click the Add or Remove Programs icon in Control Panel, click the Install/Uninstall tab, and then follow the instructions on your screen.

Resolution

To resolve this issue, follow these steps:

Click Start, click Run, type %Windir%\Inf, and then click OK.
Right-click the dfrg.inf file, and then click Install.

Alternately, you can reinstall Disk Defragmenter using the following command:

Click Start, Run and type:

rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 %windir%\inf\dfrg.inf

Other Defrag issues

Analyze and Defragment buttons in Disk Defragmenter console do nothing, or the following error message appears when running the console Defrag tool (defrag.exe)

Windows cannot connect to the Disk Defragmenter engine

Read the blog post Analyze and Defragment buttons in Disk Defragmenter console do nothing? for the solution.

If the Defrag Snap-in fails to initialize, type these commands in Start, Run dialog one by one:

regsvr32 dfrgsnap.dll
regsvr32 dfrgui.dll

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12 Responses to "How to fix Disk Defragmenter problems in Windows XP"

Tim Zipple

said this on 02 Dec 2006 10:25:51 AM PDT

I was having problems getting my defragmenter to defrag the main C drive. That tip about getting the dfrg.inf file from Windows\inf to reinstall disk defragmenter worked great. Thanks for the time-saving tip. Tim

(Reply to this comment)

NMD

said this on 08 Dec 2006 2:53:51 PM PDT

Instructions are clear and helped to solve my problem faster than quickly. Thanks!

(Reply to this comment)

Ron

said this on 15 Feb 2007 12:34:35 PM PDT

this worked for my XP regsvr32 dfrgsnap.dll from above

(Reply to this comment)

Cosmo

said this on 07 May 2007 11:28:32 AM PDT

Excellent help -after I uninstalled Diskkeeper the defrag snapin wouldn't work but this fixed it the regsvr32 commands that is -thx!

(Reply to this comment)

dee

said this on 26 Jun 2007 6:54:19 AM PDT

worked great thanks

(Reply to this comment)

Puspen

said this on 30 Jul 2007 4:13:25 PM PDT

Good Resolution

(Reply to this comment)

RandoM

said this on 02 Oct 2007 4:03:01 PM PDT

Thanks to this article I was able to install my defragmenter with ease. Thanks so much for the help. -RandoM-

(Reply to this comment)

an unknown user

said this on 18 Nov 2007 2:40:30 PM PDT

Very helpful. Fixed my problem.

(Reply to this comment)

ZAC

said this on 13 May 2008 5:29:27 AM PDT

Still cannot get my XP Media Pro to run defrag... ZAC - Australia IT SAYS A SCHEULED RUN IS DUE ON C - BUT IT JUST NEVER HAPPENS

(Reply to this comment)

igal

said this on 09 Aug 2008 8:08:58 AM PDT

Thank you so much! Helped me in a sec' Great!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

(Reply to this comment)

hen

said this on 06 Sep 2008 5:53:36 AM PDT

still cannot install the defrag?if i try to test this command rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 %windir%\inf\dfrg.inf.the screen shows installation failed?is thier any solution?can i extract the defrag file coming from my xp installer for defrag installer?

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How to fix Disk Defragmenter problems in Windows XP

Symptoms

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12 Responses to "How to fix Disk Defragmenter problems in Windows XP"

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