Version History

v2.22.995 (21 May 2018)

• Fixed a bug that caused a scheduled defrag to fail silently
• Improved SSD detection for newer SSD devices
• Improved SSD detection for laptops
• Added new Privacy menu Installer
• /L (list) switch now highlights SSDs
• Added a warning when attempting to defrag SSDs
• Added switch for forcing defragmentation of SSDs
• Fixed text cutoff on the 'Defrag' button in Dutch
• Fixed text bleeds in the installer for German and other languages

v2.21.993 (16 Mar 2016)

• Improved Analysis and Defrag performance
• Improved memory usage and management architecture
• Optimized 64-bit builds on Windows 8 and 10
• Improved update checking process
• Updated exception handling and reporting
• Improved localization and language support
• Minor GUI improvements - Minor bug fixes

v2.20.989 (19 Jan 2016)

• Improved SSD Optimize and Quick Optimize
• Improved Windows 10 support
• Optimized moving Files or Folders to end of drive
• Updated crash reporting architecture
• Optimized remaining time and benchmark calculations
• Minor GUI improvements - Minor bug fixes

v2.19.982 (11 Mar 2015)

• Added move Files or Folders to end of drive
• Improved SSD Optimize and Quick Optimize
• Added new scriptable /CHECKERRORS parameter to check drive for errors
• Added option to disable auto Benchmark after Defrag
• Improved localization support
• Minor GUI improvements
• Minor bug fixes

v2.18.945 (15 Apr 2014)

• Added Disk Performance graphs to Statistics tab
• Added Quick Optimize for SSD
• Added ability to view information for different drives when an operation is in progress
• Improved Health tab loading speed
• Added new scriptable /UPDATE parameter for background updates. (Defraggler Professional only)
• Improved detection of files without extensions in File list tab
• Minor GUI improvements
• Minor bug fixes

v2.17.898 (06 Feb 2014)

• Added New Statistics tab
• Added Intel, Plextor, Micron and OCZ SSD optimization
• Added progress information to tray tooltip
• Improved time remaining calculation
• Enhanced Freespace Defrag procedure
• Improved memory usage
• Optimized benchmarking algorithm
• Added Indonesian translation
• Minor GUI improvements and bug fixes

v2.16.809 (22 Oct 2013)

• Added Windows 8.1 support
• Added SSD optimization for Windows 8
• Added Samsung and JMicron SSD TRIM optimization
• Enhanced Solid State Drive detection accuracy
• Added additional SMART data to Health tab
• Improved search procedure for finding small files
• Updated translations
• Minor GUI improvements
• Minor bug fixes

v2.15.742 (18 Jul 2013)

• Optimized performance of Analyze and Defrag on all OSs
• Improved Context Menu defrag features
• Added File Type and Last Modified Date columns to the File List
• Added progress information to Boot-time Defrag
• Improved handling of locked and read-only drives
• Improved management of unmounted drives
• Added additional drive information
• Minor GUI improvements and bug fixes

v2.14.706 (23 Apr 2013)

• Added Freespace Defrag to scheduler
• Added single-click analysis of multiple drives
• Added support for UDF file systems
• Improved searching with wildcards
• Improved shell extension on 64-bit systems
• Improved GUI navigation
• Fixed minor bug in the monthly scheduler
• Minor improvements and bug fixes

v2.13.670 (18 Feb 2013)

• Added Quick Defrag scheduling
• Added Fragmentation Threshold to scheduled defrag options
• Added option to close Defraggler after defragmentation is complete
• Added support for 3TB external drives
• Added support for drives with allocation units greater than 4KB
• Added support for ReFS file systems
• Updated translations
• GUI and usability improvements
• Minor bug fixes

v2.12.628 (12 Dec 2012)

• Added Windows 2012 Server support
• Added support for drives mounted as NTFS junction points
• Scheduled defrags can now be prevented if specific processes are running
• Improved placement of fragments larger than 100MB
• Added advanced crash reporting
• Updated translations
• GUI and usability improvements
• Minor bug fixes

v2.11.560 (17 Oct 2012)

• Added support for Windows 8
• Added Minimize to Tray
• Added right-click Move File to end of Drive feature
• Improvements to Free space calculation
• Fixed exclusions in df.exe
• SSD drives are now handled correctly when drives are queued for defrag
• Improved drive map block calculation for very small drives
• Shortcuts are now correctly interpreted when calculating fragmentation levels
• Improved support for /minpercent parameter for df.exe
• Minor GUI improvements
• Minor bug fixes

v2.10.424 (24 May 2012)

• Defragmentation speed improved by up to 30%
• Optimized free space algorithms
• Re-architected scheduling manager
• Improved the fragmentation calculation during Defragmentation
• Fixed keyboard support for scheduler
• Minor UI tweaks

v2.09.391 (23 Jan 2012)

• Added Defrag Time Remaining
• Improved formatting of Smart data
• Smart data can now be copied
• Updated support for McAfee Endpoint Encryption
• Performance improvement on Windows 8
• Improved accuracy of SSD detection
• Improved unicode support for export file list
• Fixed issued that caused the Benchmark button to disappear
• Benchmarking info is now included in the export file list
• Improved usability in Options dialog
• Added Latvian language
• Minor bug fixes and tweaks

v2.08.373 (14 Nov 2011)

• Added Disk and File benchmarking
• Added Volume Shadow Service (VSS) compatible mode
• Improvements to disk health tab
• Added Real Value information to SMART data
• Health tab now supports Fahrenheit
• Improvements to SSD detection
• Minor fixes to scheduler stop commands
• Minor defrag algorithm improvements
• Translation fixes

v2.07.346 (13 Sep 2011)

• Added Drive Health information
• Improved detection of SSD drives
• Improved scheduler when the computer is idle
• Fixed unnecessary creation of scheduler.his files
• Improved uninstallation of shell commands
• Fixed issue that could cause GDI leak in the Options dialog
• Several small stability fixes for Windows 7
• Macedonian language added
• Minor bug fixes and improvements

v2.06.328 (08 Jul 2011)

• Added advanced options to schedule (timeout, idle time)
• Fragmentation calculation can now be customized
• Improvements to file placement algorithms
• Defraggler can now be assigned as the default defrag tool for Windows
• Added enable/disable shell extension
• Fixed issue that could cause df.exe to abort unexpectedly
• Scheduler now displays the time it last ran
• Improvements to non-English translations
• Fixed incorrect tab-stop order in scheduler dialog
• Added support for Kurdish language
• Minor bug fixes and improvements

v2.05.315 (19 May 2011)

• Improved defrag speed of large files in 32-bit OSs
• Improved drive analysis speed
• Improved Solid State drive detection
• Fixed bug with incorrect position of Defraggler item in file/folder context menu
• Added option to enable/disable shell extension
• Fixed problem with df.exe sometimes aborting
• Fixed file type exclusion bug
• Added support for the Kurdish language
• Added last scheduled defrag information
• Shell extension fixed to work correctly with UAC
• Translation fixes
• Online Help link fixed
• Minor bug fixes

v2.04.297 (14 Apr 2011)

• Added Windows Explorer extension for analysis and defrag
• Added option to shutdown the system after finishing a scheduled task
• Added minimum drive fragmentation percent parameter "/minpercent" to df.exe
• Improved 64-bit drive analysis speed
• Added missing strings to translations
• Minor bug fixes

v2.03.282 (14 Mar 2011)

• Added support for Windows 7 SP1
• Improved file shuffling algorithm (allows Defraggler to move files out of the way)
• Vastly improved the speed of the file list for FAT drives
• Faster start/stop processes for FAT drives
• Improved support for low RAM situations
• Drive map block size can now be updated dynamically
• Fixed bug that could cause shutdown to fail with Freespace Defrag
• Improved results in Search tab when 'Include non-fragmented files' is checked
• Better support for very long non-English strings
• Better keyboard support in the File List
• You can now navigate tabs using Ctrl-Tab
• Improved support for non-standard Windows colors
• New extensions to be moved to the end of the drive are now checked by default
• Better handling of delimiters in exclude list
• Minor tweaks and fixes

v2.02.253 (01 Feb 2011)

• Improvements to speed and accuracy of the search algorithm
• Redesigned NTFS processes for optimized speed and memory
• Improved event handling with Windows 7
• Improved scheduling for non-admin users
• Fixed issue that caused drive icons to disappear from the drive list
• Fixed issue that caused the Analyze button to be incorrectly drawn during long tasks
• Improved handling of long non-English strings in options dialog
• Fixed issue with fragmentation percent when drive contains sparse files
• Moved about dialog to a separate window
• Improved error logging in Windows 7
• Minor GUI changes and tweaks
• Minor bug fixes

v2.01.239 (21 Dec 2010)

• New Scheduler - Set a defrag on login, idle or specific intervals
• Improved memory use on Windows 7 with lots of files
• Improved placement of large files on exFAT
• Improved caching of column sort options
• Fixed prompt when attempting to empty the recycle bin on Vista 64
• Added link to online docs (Help > Online Help)
• Added hot-key for Quick Defrag
• Minor bug fixes

v2.00.230 (10 Nov 2010)

• Added offline defragmentation of system files during boot process
• New Drive Map with custom colors and styles
• New improved defragmentation engine
• Improved Windows 7 compatibility
• Lots of minor GUI improvements

v1.21.209 (02 Aug 2010)

• Added Free Space defrag to the command-line app
• Internal library updates
• 64-bit compiler optimizations
• Fixed the flicker on the main window tabs
• Changed internal links to piriform.com/defraggler
• Improvements to translations

v1.20.201 (21 Jun 2010)

• Improved drive map updating
• Improved 64-bit memory addressing
• Improved Quick Defrag file algorithms
• Improved handling of Windows styles
• Fixed bug with MFT buffer zone
• Added prompt on exit when long tasks are running
• Many improvements to UI when using non-English
• Added Georgian translation
• Minor stability fixes

v1.19.192 (19 May 2010)

• Added queueing of multiple drives
• New option to disable caching of drive analysis data to improve memory usage
• Improved placement of files in Quick Defrag algorithm
• Improved Windows 7 support
• Lots of other small tweaks and fixes

v1.18.185 (05 Apr 2010)

• Optimized and bug fixed defrag with large numbers of small files
• Optimized 64-bit memory usage
• Drive map is no longer blocked by background operations
• Simplified the drive map highlighting to make it faster and more memory efficient
• Fixed control sizes on file search form
• Fixed issue with exclude files dialog
• Fixed a few missing translations
• Fixed bug displaying filenames containing ampersands
• Improved memory leak detection mechanism
• Lots of minor bug fixes

v1.17.172 (15 Feb 2010)

• Improved Windows 7 support
• Rearchitected memory management on Vista/W7
• Improved handling of scheduled tasks
• Fixed Vista redraw issue with the search box
• Improved button size and placement for non-English translations
• Added support for wildcards in the search feature
• Lots of other little tweaks and fixes

v1.16.165 (04 Jan 2010)

• New native 64-bit EXE
• Defrag engine improvements to take advantage of 64-bit code
• Fixed Vista and Windows 7 repaint issue when language was changed
• Improved moving routine for small orphaned files
• Added support for Danish, Slovak, Chinese (Simplified) and Vietnamese languages
• Lots of small tweaks and improvements

v1.15.163 (04 Nov 2009)

• Redesigned disk space usage pie chart
• Windows 7 support added
• Added Portable U3 installer support
• Improved numerical and text validation
• Fixed bug in automatic update checking
• Many GUI fixes and improvements

v1.14.159 (02 Oct 2009)

• Added 'Empty recycle bin option' before defrag
• Improved placement of files around MFT
• Fixed incorrect defrag button behavior (defrag checked and highlighted while using tabstop)
• Fixed crash occurring after pressing defrag button
• Fixed tab order on cleanup drive dialog
• Added Run Defraggler option after installation
• Added Estonian support

v1.13.155 (17 Aug 2009)

• Added quick defrag to command line version
• Added option to view folder index entries in file list
• Fixed bug related to excessive GDI objects
• Fixed tab issue in search tab
• Improved speed of moving very large files to the end of the drive
• Several minor bugs fixed

v1.12.152 (22 Jul 2009)

• Added Quick Defrag feature
• Added exFAT compatibility
• Architecture changes to improve defrag performance
• Improved placement of most commonly used files
• Various UI tweaks

v1.11.148 (22 Jun 2009)

• Added custom drive map colors (Options > General > Interface)
• Fixed schedules for multiple drives
• Fragmented info is now displayed in df.exe
• 'Large files' can now be excluded from freespace defrag (Options > Defrag > Advanced)
• Improvements to the way crash data is collected
• Various minor UI tweaks
• Several minor bugs fixed

v1.10.143 (11 May 2009)

• Added file exclusion feature
• Added detection of Solid State Drives
• Added "Include non-fragmented files" checkbox to file search
• Improved interactivity of search
• Fixed problem that could allow df.exe and Defraggler.exe to run at the same time
• Fixed rare crash while reanalyzing
• Minor GUI text changes
• Minor bug fixes

v1.09.138 (13 Apr 2009)

• New search feature
• Various tweaks to the drive list
• Improvements to freespace calculation when moving large files
• Improved handling of of sparse files
• Lots of minor UI tweaks

v1.08.132 (16 Mar 2009)

• Improved handling of NTFS compressed files when moving to end of disk
• Added /shutdown option to df.exe
• Added /large file option to df.exe
• Drive list now includes a % fragmented column
• Blank file types no longer allowed in Large file options
• Warning when trying to set a schedule in the past
• Right click 'Check this' option is now greyed correctly
• Various small UI tweaks

v1.07.124 (03 Feb 2009)

• Added Shutdown after Defrag option
• Improved Interactive Drive Map response in Vista
• Language DLLs now stored in /lang folder
• Program startup speed improved
• Architecture changes to improve defrag performance
• Minor tweaks to main UI
• Several minor bug fixes

v1.06.118 (12 Jan 2009)

• Added interactive drive map
• Improved scheduler handling of multiple drives
• Fixed rare crash in Vista when defragging Folder entries
• Optimized file placement for Win2k3
• Improved placement of large files at end of drive
• Added Dutch, Ukranian and Norwegian translations
• Various UI tweaks
• Several minor bug fixes

v1.05.111 (05 Dec 2008)

• Added 'Move files to end of drive' feature
• Added 'Save settings to ini file' option
• Added French, Croatian, Chinese Traditional, Catalan, Bulgarian and Turkish translations
• Fixed rare crash under Vista that could happen when using menus
• Improvements to debug logging routines
• Various small UI tweaks

v1.04.98 (29 Oct 2008)

• Multi-language release (16 new languages!)
• Improved handling of daily schedules
• Fixed bug that could file defrag to be very slow
• Improved logging of analysis methods
• Loads of performance improvements
• Loads of bug fixes

v1.03.93 (01 Oct 2008)

• Added support for multiple languages
• New options dialog
• Added scheduler
• Fixed display of labels for removable drives
• Added support for tabbing between sections
• Loads of performance improvements
• Minor bug fixes

v1.02.85 (01 Sep 2008)

• Improved progress indicator accuracy
• Added checks for freespace
• Various GUI and usability improvements
• Fixed UI issues with large DPI settings
• Fixed 64-bit compatibility issue that would ignore some files
• Improved drive map (defragged files are now always marked as blue)
• Added background update checking
• Fixed minor bug in progress indicator for chkdsk
• Minor bug fixes