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Auslogics Disk Defrag

Disk fragmentation leads to system slowdowns, PC crashes, slow startups and shutdowns. Auslogics Disk Defrag is designed for fast defragmentation of modern hard disks. The new version can also consolidate free space and optimize system files placement. Disk Defrag is absolutely FREE for home users.

Get it from CNET Download.com!

We found the program fast, even on older XP systems. A handy HTML report is prepared after each defrag session. ... Fantastic utility far superior to Windows Disk Defragmenter.

- CNet Reviews


    System Requirements
  • Windows 7 / Vista / 2008 / XP (32-bit & 64-bit)
  • 50 MB available hard disk space
  • 32 MB RAM


Features & Screenshots

Defrag & Optimizezoom

Disk Defrag allows not only to defragment, but to optimize your disk drives for maximum performance. It can consolidate free space, move system files to the faster part of the disk and clear the MFT Reserved Zone from regular data files. These optimization techniques will speed up your system and make it more stable. And with all the advanced techniques of disk optimization it has, Disk Defrag is extremely compact and easy to use!

Free space consolidationzoom

Simple defragmentation of data files leaves fragmented free space. This means that there are many free space 'holes' all over the disk. Windows fills those 'holes' with newly created or extended files. The more fragmented the free space is, the more fragmented new files will be. Disk Defrag merges free space into a large contiguous block during optimization process. This technology effectively prevents further files fragmentation and speeds up disk access.

System files smart placementzoom

System files are necessary for the operating system to perform its numerous functions. Commonly used by Windows, system files may be scattered all over the disk and intermixed with regular data files. Disk Defrag defragments them and moves them to the faster part of the disk. Such intelligent way of defragmentation minimizes the time needed for HDD to access system files and thus improves overall computer performance.

Keeping the MFT Reserved Zone Clearzoom

Normally, NTFS file system reserves about 12,5% of the disk space for the MFT records. However, when the rest of the disk space is getting low, the MFT Reserved Zone will be used for storing regular files. This may lead to MFT fragmentation. Disk Defrag moves regular data files from the MFT Reserved Zone into the rest of the disk space, allowing NTFS to allocate contiguous space for the MFT records and thus to prevent its fragmentation.

Single file or folder defragmentationzoom

Sometimes it makes more sense to defragment frequently used files only, instead of defragmenting an entire drive. Disk Defrag can save your time by defragmenting only files that you want. It allows you to defragment a single file, several files or an entire folder. This option would be useful if you want to speed up application performance immediately and have no time for defragmenting the entire disk.

List of fragmented fileszoom

Disk Defrag lists all fragmented files after performing disk analysis. Selecting any file from the list will highlight its clusters' location on the fragmentation map. You can find the most fragmented files and their paths by sorting the list. The list also lets you chose which files to defragment and files you want to add to the ignore list. All you need to do is right-click on any file directly in the list and select the operation you want Disk Defrag to perform.

Auto-defrag modezoom

With its auto-defragmentation feature, Disk Defrag acts in real time, while your system is idle. Since Disk Defrag is very compact and requires few system resources, it can easily defragment your disks in the background and you will not even notice its activity. Use a handy auto-defrag icon (in the bottom-left corner) to easily customize and control auto-defrag mode. Just set Disk Defrag to run automatically and you’ll forget about disks fragmentation shortly.

Scheduled defragmentationzoom

Running Disk Defrag at least once a weak assures your hard disks are optimized for maximum performance. Disk Defrag scheduler will help you perform regular disk drives maintenance. Use a wide range of its options to set the most suitable time span for disks defragmentation. It can be run daily, weekly or monthly, at any time you want. In addition, you can set Disk Defrag to save reports after each defragmentation to control its activity.

Customizing Disk Defragzoom

Use many handy settings to customize your Disk Defrag. It can be integrated into the Windows Explorer context menu and minimized to system tray on close. The last option you’ll find especially convenient when using the auto-defrag mode. You can also set Disk Defrag to automatically shut down your computer after defragmentation is done. And with its several fragmentation map colour themes you can change the way your Disk Defrag looks.

Multiple Languageszoom

We are very grateful to our users who have helped us to translate Disk Defrag into their native languages! Thanks to them, Disk Defrag is available in English, German, Spanish, French, Hungarian, Italian, Japanese, Korean, Polish, Portuguese and Russian. If you like our software, you can contribute to developing Disk Defrag by translating it into your native language. It is very simple – just download this zip file, unpack it and follow the instructions included.