UltraDefrag is a powerful open source defragmentation tool. Its engine is very fast, because it is created as kernel-mode driver. They are three interfaces to them: graphical, console and native. First is very useful, because it use cluster map visualization. Console is good for task scheduler, and native tool - for advanced users and programmers.
What's new in this version:
wxWidgets were upgraded to the latest 3.1.0 release
Crash handler was improved to handle division by zero errors
Uzbek (Latin) translation was added
The following translations were updated: Filipino (Tagalog), Iloko, Korean