The Disk Keeper Lite that came with my pre-installed Windows XP Pro gave up the ghost recently. The "fix" option offered in control panel when remove or change this software is selected has not helped. My memory is that this occurred very shortly after installing a set of patches from Microsoft for XP.

There is no other de-fragger installed as a part of Windows.

In any case, can someone recommend a good - preferably inexpensive - disk defragger?

Thanks in advance!