UltraDefrag是一款开源免费好用的磁盘碎片整理工具，提供图像界面和命令行版本，支持32位和64位系统。 UltraDefrag磁盘碎片整理程序是直接通过系统核心驱动层操作的，所以它的最大特点就是快，和Windows自带磁盘碎片整理程序的整理速度相比简直就是天壤之别
UltraDefrag是一款开源免费好用的磁盘碎片整理工具，提供图像界面和命令行版本，支持32位和64位系统。UltraDefrag磁盘碎片整理程序是直接通过系统核心驱动层操作的，所以它的最大特点就是快，和Windows自带磁盘碎片整理程序的整理速度相比简直就是天壤之别。
在具体功能设置上UltraDefrag非常简单只有分析、整理、优化三个按钮，可以让大家在几分钟内将所有的磁盘整理完毕。通过UltraDefrag的优化操作，UltraDefrag可以重新排列所有的数据文件并将它们放置在磁盘前端部分，将数据放在磁盘前端在很多情况下已经获得证实确实可以增强系统的稳定性。习惯使用UltraDefrag的朋友也可以通过设置将其设为Windows启动时扫描，由于UltraDefrag的操作速度非常快，所以这项操作并不会加长很多Windows启动时间的。
更新日志
Version 8.0.0 2018-09-28
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- automatic defragmentation was implemented
- all the disk processing algorithms were highly optimized for speed and efficiency
- deep action option was added to GUI, the appropriate --deep command line switch
was added to the console and boot time interfaces
- GUI was adjusted to consume less resources in paused state
- GUI startup time was greatly reduced
- installation was simplified, now the installer decides itself which set
of binaries is the most suitable for the target processor architecture
- portable edition now always includes binaries for all the supported
processor architectures and chooses automatically those which are
the most suitable for the target computer; just run the installer once
and select 'Extract portable edition' to prepare all the necessary files
- license was changed from GPL to a proprietary one
UltraDefrag Standard 9.0.1绿色单文件版(极速磁盘碎片整理工具)