Auslogics Disk Defrag is a compact and fast defragmenter that supports both FAT 16/32, and NTFS file systems. It is supplied with an advanced optimization engine that will help you to improve system performance and prevent errors caused by file fragmentation.

Optimizes file system
Disk Defrag will speed up your computer by moving system files to the fastest part of the disk. It will also move data files from the MFT Reserved Zone to prevent MFT fragmentation.

Consolidates free space
In addition to defragmenting your files, Disk Defrag can defragment free disk space. The free space is merged into a large contiguous block, which is an effective way of preventing file fragmentation.

Can defrag automatically
This feature ensures that file fragmentation is eliminated as soon as it occurs. You can set Disk Defrag to run automatically when your system goes idle. The program will analyze the disks and defragment them in the background if required.

Provides flexible scheduler
Defragmentation yields better results when it is performed on a regular basis. Disk Defrag is supplied with a flexible scheduler that will help you to schedule defragmentation according to your needs.

Can defrag a single file or folder
Have no time for defragmenting the entire hard drive? With Disk Defrag you can defragment a single file, several files or a folder.

Supports multi-terabyte volumes
Disk Defrag is supplied with a powerful engine that can easily defragment large multi-terabyte volumes. It can also defragment several drives at once, which makes the defragmentation process a lot faster.

Compact & Fast
Smart defragmentation algorithms allow Disk Defrag to run much faster than similar defragmenters and consume less system resources.

Features

Defragment & Optimize
Disk Defrag doesn't only defragment files - it can also optimize your hard drives for maximum performance. It will consolidate free space, move system files to the fastest part of the disk and clear the MFT Reserved Zone from regular files. These optimization techniques will speed up your system and make it more stable. In addition to that, Disk Defrag is very compact and easy to use!

Free space consolidation
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 the optimization process. This technology effectively prevents file fragmentation.

System files smart placement
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 files. Disk Defrag defragments them and moves them to the fastest part of the disk. Such intelligent way of defragmentation minimizes the time needed to access system files and improves overall computer performance.

Keeping the MFT Reserved Zone clear
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 is used for storing regular files. This may lead to MFT fragmentation. To prevent MFT fragmentation, Disk Defrag moves regular data files from the MFT Reserved Zone, allowing NTFS to allocate contiguous space for the MFT records.

Single file or folder defragmentation
Sometimes it makes more sense to defragment frequently used files only, instead of defragmenting the entire drive. Disk Defrag can save your time by defragmenting only the files you want. It allows you to defragment a single file, several files or an entire folder. This option is useful when certain files need to be defragmented to speed up an application and there is no need to defragment the entire hard drive.

List of fragmented files
Disk Defrag lists all fragmented files after performing disk analysis. Selecting a 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 through the list. The list also lets you chose files to defragment and which files to add to the ignore list. All you need to do is right-click on a file in the list and select the operation you want to perform.

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

Scheduled defragmentation
Running Disk Defrag on a regular basis ensures that your hard drives are optimized for maximum performance. The program's scheduler will help you to maintain your hard drives. Use a wide range of its options to set Disk Defrag to run according to a schedule. The program can be run daily, weekly or monthly, at any time you want. You can also configure Disk Defrag to save reports after each defragmentation to control its activity.

Customizing Disk Defrag
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 is especially convenient when using the auto-defragmentation mode. You can also set the program to shut down your computer after defragmentation is complete. And with its several fragmentation map colour themes you can change the way your Disk Defrag looks.

Multiple languages
We are very grateful to our users who have helped us to translate Disk Defrag into their native languages. Thanks to them, the program 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 included instructions.