| Contig | UltraDefrag x64 | Defraggler | HDiskDefrag x64 | |
| 1.83 | 7.1.4 | 2.22.995 | 3.0.5 | |
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| Freeware | Freeware | Freeware | Freeware | Licence |
| FREE | FREE | FREE | FREE | Price |
| 0.25 MB | 0.60 MB | 6.10 MB | 0.27 MB | File size |
| Mar 10, 2023 | Mar 2, 2020 | May 22, 2018 | Aug 20, 2015 | Update |
| 17 | 17 | 41 | 15 | Downloads |
| Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64, Windows 11 | Windows Vista x64, Windows 7 x64, Windows 8 x64, Windows 10 x64 | Windows XP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64 | Windows XP, Windows Vista x64, Windows 7 x64, Windows 8 x64, Windows 10 x64 | OS |
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