J C Kessels - (Freeware)
Despite its poor interface, MyDefrag is a faster and lighter solution for Windows defragmenter.
 MyDefrag is a small utility for defragmenting and optimizing the hard drives, memory cards or USB keys. Simple and convenient, simply select the item you want to enable: analysis, defragmentation, optimization, defragmentation or a memory card.
 
 Compared to the Windows defragmenter, it has various advantages. Not only is it faster than Windows and consumes fewer resources, but as a bonus it has two different defragmentation strategies more effective than Windows: the "fast" method is well suited for everyday use and the "full" method to defragment background.
 
 It can work as a simple command line program, as a graphical application, and even as a screen saver! With the saving , the drive will always be in its optimal form .
 
 The software is fully automated, making it easy to use. 
 
 * Optimized the subroutine that searches for contiguous fragments.
 * Fixed a bug that would prevent the program from running (immediate finish) without a proper error message, if there was a directory called "Settings" anywhere in the path. Also added some extra error messages in case there is a problem executing a script.
 * Optimized the subroutine that vacates items out of the way.
 * Disabled the OtherInstances(ask) setting for the screensaver.
 * The "F1" key now looks for the manual in the installpath, instead of always using "C:Program FilesMyDefrag v4.XManual.chm".