UltraDefrag 7.1.1

UltraDefrag

UltraDefrag speeds up the computer by defragmentation of files. When files consist of many little fragments scattered around the disk the computer needs more mechanical work to read them. Because of that the disk access becomes slower. UltraDefrag reduces the file fragmentation, thus it makes disk operations faster. Also the program can optimize a whole disk by placing small files close to each other, sorted by path (or other criteria). After the disk optimization less mechanical work is needed to read groups of small files. This reduces startup times of many applications including web and photo browsers.

In contrast with the most other disk defragmenters UltraDefrag can defragment locked files by running during the Windows boot. Actually all files including page and hibernation files can be defragmented there. Also UltraDefrag aims to be fast, simple, reliable and efficient.

UltraDefrag runs on Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008 and Windows 7, including all 64 bit versions of Windows. UltraDefrag v6 supports Windows NT 4.0 and Windows 2000 as well. UltraDefrag cannot be used on DOS, Windows 9x, Windows NT 3.51, ReactOS and Mac OS since these operating systems provide no defragmentation API. However, Linux port of UltraDefrag exists. It is based on NTFS-3G capabilities.

UltraDefrag has the following features:

system files defragmentation (page-file, hibernation file, ...)
MFT (master file table) defragmentation
NTFS metafiles defragmentation
ultra fast NTFS analysis
fast defragmentation algorithm
effective disk optimization algorithm (many strategies available)
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 perform defragmentation only when the disk fragmentation level is above the specified value
ability to select multiple disks 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 (about 1 Mb)
portable version available which requires no installation
native 64-bit support
open source code licensed under GPL

Supported file-systems:

The following file-systems can be defragmented by UltraDefrag: FAT12/16/32, exFAT and NTFS.

UltraDefrag 7.1.0 changelog:

the repeat action option was retired, now all the disk processing algorithms decide themselves whether it's worth to run one more pass or not
compatibility with Windows 8.1 and Windows 10 was improved
cluster map was adjusted to always fit perfectly into the main frame
file fragmentation reports appearance was improved
options.lua file was moved to conf subfolder to fix configuration tracking bugs (#222 and #225)
explorer's context menu entries were fixed to never show up for special objects like recycle bin and control panel
file fragmentation reports were fixed to take daylight saving time settings into account
a lot of minor bugs were fixed
documentation was expanded

The following translations were updated:

Chinese (China), English (United Kingdom), Estonian, French, Galician, German, Iloko, Italian, Japanese, Lithuanian, Polish, Portuguese, Portuguese (Brazil), Spanish, Spanish (Argentina), Spanish (Mexico), Swedish

Other changes:

website was moved from https://ultradefrag.sourceforge.net/ to https://ultradefrag.net/ for the sake of performance - now it works approximately 10 times faster
Internals: compilation was optimized for speed

Changes in v7.1.1: