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Original author(s) Stable release 7.0.2 (December 17, 2016 (2016-12-17)) [±] Preview release 7.0.0 RC1 / December 20, 2015; 14 months ago (2015-12-20) Operating system Type Defragmentation program | ||
UltraDefrag is an open-source disk defragmenting utility for Microsoft Windows. It is released under the GNU General Public License. The only other Windows-based defragmentation utility with a GNU GPL was JkDefrag, but its GPL version was discontinued in 2008.
UltraDefrag uses Microsoft's defragmentation API and works on Windows NT, 2000, XP, Server 2003, Vista, 7 and 8 operating systems. It supports FAT12, FAT16, FAT32, exFAT, and NTFS file systems.
References
UltraDefrag Wikipedia(Text) CC BY-SA