Please enable JavaScript to access the page's full functionality. Find out how.

Auslogics Disk Defrag Pro

Get your drives optimized for top speed and maximum efficiency with this powerful program's smart algorithms and boot-time defrag technology.
DOWNLOAD NOW Compatible with
Windows XP, Vista, 7, 8.1
Latest ver. 4.4.2.0 (07/10/2014)
Total downloads: 364,537
Auslogics Disk Defrag Pro is a product of Auslogics, certified Microsoft® Gold Application Developer.
Microsoft confirms Auslogics' high expertise in developing quality software that meets the growing demands of PC users.

What does Disk Defrag Pro do?

The problem: You may be experiencing longer application startup times or a general slowdown and believe disk fragmentation may be behind it. You want more than just a simple defrag to ensure your drives' optimal performance.

The solution: Disk Defrag Pro lets you defrag files that are inaccessible during system operation, as well as optimize file placement on your hard drive to ensure faster access and most efficient operation. The multiple scheduling options let you easily maintain consistently high HDD speed.

Why Disk Defrag Pro?

  • 3-PC license

    Install and use the program on up to 3 PCs with just one license – get all your hard drives optimized for top speed!

  • FREE to try for 14 days

    The free fully-functional trial lets you test every single feature and see this fast and powerful drive optimizer work its magic.

  • Adapts to your needs

    The smart algorithms and multiple scheduling options let you customize your defrags to match your PC usage style and requirements.

  • Industry-acknowledged quality

    Exclusive Auslogics technology is proven safe and effective in multiple tests, used by PC manufacturers and recommended by experts.

Did you know?

Your hard drive is the slowest part of your PC system. Because of the mechanical movement of the read/write head required to access data from your hard drive, it just can't be as fast as your CPU or other system components. This is why it is important to prevent HDD slowdowns by reducing the number of mechanical movements needed to access data. Auslogics Disk Defrag Pro is the perfect tool to get your drives working at maximum efficiency.

Compare features:

We have put together a side-by-side comparison of Windows Defrag, Auslogics Disk Defrag Free and Disk Defrag Pro. Curious how they compare?

See comparison table

We take care of our customers!

YOU GET:
FREE premium tech support
FREE program updates
FREE PC maintenance tips

Disk Defrag's Pro features:

Smart Defrag Algorithms
Boot-time Defrag
Algorithm for SSD Drives
Disk Cleanup & Checkup
Defragmentation Wizard
Advanced Scheduling Options
Single File or Folder Defragmentation
List of Fragmented Files
Fragmentation Prevention
Free Space Consolidation
Resource Management
Performance Charts
VSS-Compatible Algorithm

Smart Defrag Algorithms

The program sports 4 algorithms for intelligent file placement, which are sure to cover whatever specific optimization need you might have. Use the Optimize by Access Time method when you want to have faster access to frequently used files. In order to speed up your system loading and application startup, use the Optimize by Prefetch Layout algorithm. If you just want to reduce further file fragmentation, then choose Optimize by Change Time. And finally, the Optimize by Disk Zone algorithm allows you to manually specify which file types or even individual files should be written to the faster part of the disk.

Boot-time Defrag

Boot-time or offline defragmentation lets you defrag even the system files that are normally locked by Windows. Offline defrag runs on system startup, before the operating system loads, and allows you to streamline the following system files: MFT files, Paging file, Hibernation file and Windows Registry files. Defragmenting system files will make your Windows more responsive, speed up system loading and overall performance.

Algorithm for SSD Drives

The special SSD optimization algorithm greatly reduces the number of write operations during defragmentation, which prevents excessive wear and allows to extend the disk's lifespan. If you prefer not to include your SSD in defrags or optimization, you can set the SSD not to be displayed in the list of drives at all.

Disk Cleanup & Checkup

For faster and safer defragmentation, you can set the program to remove temporary files and check the disk for errors prior to defragmenting. This ensures that the program won’t have to waste your time processing junk files, as well as that there won't be any data loss if the disk happens to have errors.

Defragmentation Wizard

With so many disk optimization algorithms and defrag options available, how do you choose the right one for your PC? Thanks to Defragmentation Wizard, it's a matter of just a few simple clicks. All you have to do is specify what purpose you mostly use your computer for (home, office, gaming or as a server), how often you work with various types of documents, and when your PC is on, but is not in use. This information will help the program suggest optimization algorithms that will work to achieve optimal disk and system performance.

Advanced Scheduling Options

You can set the program to run precisely at the specified time, or alternatively, use Auto Defragmentation mode, which enables the program to defragment and optimize your disks in real time, making sure that file fragmentation is eliminated as soon as it occurs. And thanks to adjustable resource usage restrictions, any of the scheduled tasks won't ever disturb you while you work or play on your computer.

Single File or Folder Defragmentation

Sometimes it makes more sense to defragment frequently used files only, instead of defragmenting the entire drive. Disk Defrag Pro can save you 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 Pro lists all fragmented files after performing disk analysis. Selecting a file from the list will highlight its fragments' location on the cluster map. You can find the most fragmented files and their paths by sorting through the list. The list also lets you choose files to defragment and files to add to the ignore list. All you need to do is right-click on a file in the list and select the appropriate option.

Fragmentation Prevention

Disk Defrag Pro allows you to specify the amount of free space to be left after certain files to ensure that these files have room to expand. This effectively prevents fragmentation by allowing new data to be written in the same location as the original file it's being added to, instead of somewhere else on the drive.

Free Space Consolidation

Use the Free Space Consolidation algorithm to greatly slow down the process of file fragmentation. This optimization method merges free space on your disk into a large contiguous block, which makes it possible for new files to be written without fragmentation. Note that while consolidating free space, the program also defragments files, but you can disable defragmentation to make the consolidation process go faster.

Resource Management

Disk Defrag Pro allows you to easily control the load on system resources produced by the defragmentation process. Restrict the use of system resources by the program when you are at your PC, or lift any restrictions to defrag your disks faster. There are 4 pre-defined resource usage profiles you can choose from. Alternatively, you can create your own profile with specific CPU and disk usage restrictions. You can also restrict launching defragmentation process when a specified application is running or your laptop switches to battery power.

Performance Charts

You can easily track performance improvement and your system state through detailed reports and charts provided by the program. View the degree of file and free space fragmentation, size of the largest contiguous free space block available on your disk, and number of files processed during each operation. All reports can be viewed, printed and stored in a format convenient for you.

VSS-Compatible Algorithm

Disk Defrag Pro is equipped with algorithms designed specifically for Volume Shadow Copy Service (VSS)-enabled drives. It works to minimize the growth of the VSS storage area caused by file movement during defragmentation and reduces the chance of overwriting previous VSS snapshots. This eliminates the problem of free space shrinking during defrag, which users may experience with some other defragmenters.

Founded in 2008, Auslogics has built a strong reputation through its dedication to developing effective PC maintenance and optimization solutions.

The quality of its products is recognized by major IT industry players such as Intel and Microsoft and highly rated by the world-renowned IT experts. Over 10,000,000 users worldwide, including customers from Fortune 500, are now enjoying benefits Auslogics software provides for their PCs.

Together with our respected partners, among which you'll find such names as Sony Vaio, AVG and Bitdefender, we keep up the hard work to be able to meet the ever increasing demands of Microsoft Windows users around the world.

Download and try Disk Defrag Pro for free!

What you receive: the free trial version lets you test every single program feature for 14 days, with no functionality limitations. You can defrag and optimize your drives, schedule automatic defragmentation and track performance improvement through detailed charts and reports.
Download for free
Total downloads: 364,537
Compatible with
Windows XP, Vista, 7, 8.1
If you like what you see, you'll be able to upgrade to the full version to keep your HDD in a consistently great shape for $29.95

Awards and reviews

"Auslogic Disk Defrag Pro offers better performance, more customization, and better statistics than most defragmenting programs."
"Auslogics' Disk Defrag Pro is a very capable defragger with a clean interface and multiple defragging options. Disk Defrag Pro did a very nice job in our hard-drive tests, handling superfragmented partition and other chores with ease."

Need more information or help?

Contact us!
BoostSpeed 7 has been released! It is better equipped than ever to fight PC slowdown and help you get that new PC feel back. Download Now Learn more