How To: Fix Windows Built in Defragmenter
http://www.andreasroom.com/blog/arch...18/defrag.aspx

Restore the Windows Defragmenter
Windows XP

I've seen on several computers where the built in Disk Defragmenter
not
longer runs correctly. This often happens when you install a third
party
defragmenter like Diskeeper, then on uninstalling, it does not restore
the
built in one correctly.


Some of the problems you may encounter are, a box like the one shown
here
Snap-in failed to initialize,
CLSID: {43668E21-2636-11D1-A1CE-0080C88593A5}
when you try to run windows defrag, or other times, the defrag window
will show up, but the analyze and defragment buttons will do nothing.

Solution

The solution is actually quite simple. You need to re-register the
defragmenters snap-in files, and the basic registry entries.

First open up a Command Prompt, this can be found at:
Start -> All Programs -> Accessories -> Command Prompt

Change into your windows\system32 directory. Your windows directory
will
be either windows or winnt. Type:
cd \windows\system32

Register the defrag components, by typing:
regsvr32 dfrgsnap.dll
regsvr32 dfrgui.dll


At this stage, you may find the defragmenter works. If not, there is
one
more step you can do.

Using Windows Explorer browse to your windows\inf folder.
In there you will find a file called dfrg.inf right click this file,
and
select Install.

Done!

Posted on Sunday, 18 January 2004 1:25 p.m.

Copyright © 2001 - 2004 Andreas Michaelides, All Rights Reserved



"Astiman" <Astiman@discussions.microsoft.com> wrote in message
news:2218CEEC-CF46-414C-85A7-C9EBC3DE1D93@microsoft.com...
>I have Win XP Pro SP2 installed. Somehow disk defrag is not active. Does
>it
> not come loaded in XP or was it not installed? If it was not installed
> how
> do I correct this? Thank you for your help.