The latest version of UltraDefrag was created in 2010-2015 by Dmitri Arkhangelski and Stefan Pendl. Justin Dearing helped to launch the project in 2007.
UltraDefrag is a powerful disk defragmentation tool for Windows. It is the first open source defragmenter with full support of system locked files defragmentation.
28 Mar 2016 ... UltraDefrag (64-bit) is an open source defragmentation tool. Its engine is very fast , because it is created as kernel-mode driver. They are three ...