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UltraDefrag

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UltraDefrag
Original author(s)Dmitri Arkhangelski, Stefan Pendl, Justin Dearing, Sayem Chaklader
Stable release
8.0.0 / September 28, 2018; 5 years ago (2018-09-28)
Preview release
7.1.0 / September 28, 2018; 5 years ago (2018-09-28)
Repositorysourceforge.net/projects/ultradefrag/
Written inC, Lua, JavaScript
Operating systemWindows NT 4.0 and later
TypeDefragmentation
LicenseGNU General Public License for 7.1.0
LicenceProprietary for 8.0.0
Websiteultradefrag.net

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.[1] In 2018, UltraDefrag sources have been relicensed to Green Gate Systems, LLC. The enhanced 8.0.0 version features automatic defragmentation and is said to have much faster disk processing algorithms.

UltraDefrag uses the defragmentation part of Windows API and works on Windows NT 4.0 and later. It supports FAT12, FAT16, FAT32, exFAT, and NTFS file systems.[2]

See also

References

  1. ^ Kessels, Jeroen. "JkDefrag v3.36". Archived from the original on 2015-02-15. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  2. ^ "UltraDefrag Handbook: Introduction".