Open source free defragmenter that runs on Windows NT 4.0 / 2000 / XP / 2003 / Vista and their 64-bit versions,UltraDefrag"is. Since it operates as a kernel mode driver, it consumes less memory, and ...
UltraDefrag is a open source defragmentation utility for windows. It works faster than the native Windows defragmenter tool. Ultradefrag comes with three interfaces, graphical, console and native.