Introduction
UltraDefrag is the first open source disk defragmenter for Windows which supports defragmentation of locked system files by running during the Windows boot process. Actually all files including registry hives and page-file can be defragmented at Windows boot time.
Also one of the primary goals of the UltraDefrag design is doing the job as fast as possible.
UltraDefrag has the following features:
system files defragmentation (registry, page-file, ...)
ultra fast NTFS analysis
fast defragmentation algorithm
effective volume optimization algorithm
safety, it can never damage processed files
simplicity, it can be used without reading the documentation
ability to defragment single files/directories from the context menu of Explorer
ability to defragment additional streams attached to NTFS files
ability to exclude any unimportant files based on flexible filters
ability to defragment files, which have more fragments than specified by a threshold
ability to automatically break defragmentation when the specified time interval elapses
ability to select multiple volumes for defragmentation
well readable HTML reports
powerful command line interface
ability to automatically hibernate/shutdown PC after a job is done
ability to make an automatic effective defragmentation through Windows Task Scheduler
multilingual graphical interface
little binaries (less than 500 kb)
portable version available which requires no installation
native 64-bit support
open source code licensed under GPL
UltraDefrag runs on Windows NT 4.0, Windows 2000, Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008 and Windows 7, including all 64 bit versions of Windows. NT 4.0 Alpha is currently not supported. ReactOS and Wine aren't supported yet, because they have no defragmentation API implemented at this moment.
