From what I have seen before, Diskeeper is the same company, Executive something, that XP defrag is based on. Thats why Diskeeper takes over. If and when you uninstall Diskeeper you will get your win XP defrag back. I used to have the DiskeeperLite, which was for free, but since I didn't see any gain, I got rid of it and now just use win XP defrag.
I downloaded a trial version of Diskeeper 10. Ran it once.
Somehow, it has replaced the Disk Defragmenter that is packaged with my OS, Windows XP Home Edition!
How do I restore the original utility? Or, does the original utility reappear when the trial version is uninstalled?
(Curiously, the shortcut in the toolbar is for the Windows' Disk Defragmenter, but when you click on it, Diskeeper loads.)