What happened to my defragmentation utility?

[GSN]

I went to run defrag on my Windows XP Home Edition computer tonight and
under the Tools for my Hard Disk properties it said: "No
defragmentation tool is currently installed." I have definitely run
defrag before on this computer. Where did it go? Did it disappear with
one of the Windows updates? I am totally up-to-date with all updates.
How did it disappear and how do I get it back? Any help much
appreciated.

 

[JS]

Did you install a trial version of a third party defragmentation tool and
then un-install the trial version when it expired?
Diskeeper has caused this problem in the past.

JS

 

[GSN]

I did not install a third party defrag tool... Use Norton's and Spy
Sweeper virus and spyware utilities... That's about the only thing I've
installed on this machine recently. What other possibilities could this
be?

 

[GSN]

I did not install a third party defrag tool... Use Norton's and Spy
Sweeper virus and spyware utilities... That's about the only thing I've
installed on this machine recently. What other possibilities could this
be?

 

[JS]

Try this: http://www.kellys-korner-xp.com/xp_tweaks.htm got to entry #280

JS