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Recommended by experts
as one of the fastest and most efficient defraggers
Disk Defrag 12

Make Your Files Whole Again!

Speed up access to files on your HDD and optimize drive performance with our award-winning disk defragmenter.
Free vs Pro comparison
Version 12.0.0.0 | Released: 2024.11.07 | 20.5MB. Compatible with Windows 7, 8, 8.1, 10, 11.
16+ years
on the market
5-star awards
from industry experts
50+ million
user downloads

What Can Auslogics Disk Defrag Do for My PC?

Auslogics Disk Defrag 12 is a dedicated tool designed specifically for hard disk drives with their data reading/writing mechanisms. Help your HDD work smoothly and efficiently every day.

Defragment Hard Drive

Auslogics’ proprietary disk defragmentation technology has been praised as one of the fastest and most efficient on the market. The app identifies fragmented files and lets you quickly defrag computer for faster data access, which helps speed up PC.

Improve HDD Performance

The optimization feature in Disk Defrag offers a multitude of options to enhance handling of small files, manage Prefetch, paging and TRIM functionality, and take control over other aspects of HDD operation.

Consolidate Free Space

The app will merge scattered pieces of free disk space into a contiguous block to effectively prevent fragmentation of newly created files.

Defragment On the Go

You can create a portable version of Disk Defrag, save it to a USB drive and use it on any computer that may not have access to the Internet or free space on the system drive.

Defrag Single File or Folder

When you need to speed up a game or some resource-heavy application, Disk Defrag saves you time by defragmenting only the files or folders you need instead of the entire hard drive.

Run Scheduled Defrags

Set a convenient time when your PC is on but is not heavily used, and Disk Defrag will check whether defragmentation is in order. It will then automatically defragment your files if it finds that your HDD has become fragmented.
Download
Disk Defrag today
and speed up your hard drive
Version 12.0.0.0 | 20.5MB | Released: 2024.11.07.
Compatible with Windows 7, 8, 8.1, 10, 11.

Why Auslogics Disk Defrag?

With multiple options out there, why should you choose to defragment hard drive with Auslogics? There are actually quite a few things that make this smart disk defragmenter stand out.

Industry-Acknowledged Quality

Auslogics software products have been proven safe and effective in multiple tests, used by PC manufacturers and recommended by experts.

100% Money-Back Guarantee

We guarantee that our software will deliver the results it is designed for. If you aren’t satisfied with the outcome, you may receive a full refund within 30 days of license purchase.

Ultra-Fast Engine

One of the fastest defraggers in the world, Disk Defrag often takes less than 10 minutes to defragment an average-size hard drive.

Professional Support

Use the Ask a Question tool in Disk Defrag to post your question and get an answer from tech experts, or email our friendly support for prompt assistance. Most inquiries are answered within a few hours.

Why Use Separate Tools for SSDs and HDDs?

Each drive type requires specific maintenance. For instance, while defragmentation is required to improve HDD performance, it only accelerates wear and tear on an SSD. Using a specialized tool ensures that you receive appropriate maintenance tailored to your drive type and pay only for updates relevant to your specific drive, saving on features not applicable to your hardware.
How can I find out what type of disk drives are installed in my system – HDD or SSD?
Auslogics Disk Defrag
Download a special app that will optimize your HDD for top performance. Use it for FREE!
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Auslogics SSD Optimizer
Get a dedicated app to safely enhance and protect your SSD. Use it for FREE!
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Disk Defrag 12

for HDD drives
Buy now

SSD Optimizer

for SSD drives
Learn more

Disk Toolkit

bundle
Learn more

How to Defrag Computer with Auslogics

Disk Defrag makes diagnosing file fragmentation and defragmenting hard drive an easy job for users of any PC skill level. Just follow the steps below:

Step
1

Download and install Disk Defrag on your PC

Step
2

Run a scan to check drives for fragmentation

Step
3

Click the Defrag button and watch your files put back together on the cluster map

Why Defrag Hard Drive?

As we save, delete or edit files, Windows may place parts of the same file into different spots on the drive, which happens when there is not enough contiguous free space to store the entire file. HDD fragmentation is a common cause of slow computer performance. What does defragging do? Defragmenting hard drive puts files back together and helps improve your PC experience in a number of ways:

Speed Up Computer

A heavily fragmented hard drive may slow down a lot of things on a Windows computer. A disk defragmenter helps organize disk space on PC and improve overall performance.

Extend HDD Lifespan

The platters and the reading/writing head can suffer from excessive wear when the drive stays heavily fragmented all the time. Defragmenting hard drive and consolidating free space reduces the load on your HDD, helping it last longer.

Help Enjoy Smoother Gameplay

Game files can be quite large, which makes it harder for Windows to find enough room to save the entire file in one spot. Defragmenting game files lets you ensure better frame rendering speed and less freezing while playing.

Ensure Faster Scans and Backups

When you defrag hard drive, any operations that require a lot of reading or writing go at a faster speed. That includes antivirus or other diagnostic scans, creating system restore points or backing up your personal files.
Download
Disk Defrag today
and speed up your hard drive
Version 12.0.0.0 | 20.5MB | Released: 2024.11.07.
Compatible with Windows 7, 8, 8.1, 10, 11.

Still Have Questions?

See if your question has already been answered below.
How can I find out what type of disk drives are installed in my system – HDD or SSD?

Auslogics Disk Defrag automatically detects whether your disk is an HDD or SSD and marks the type in the corresponding column of the Disk List table. This way, you don’t have to worry about looking up your PC properties and trying to find your drive characteristics on your own.

If Disk Defrag detects that all of your drives are SSD, it will not run regular defragmentation on them. If that’s the case on your PC, we recommend that you install Auslogics SSD Optimizer and use its special SSD-safe algorithms to maintain your drives.

How do I know that my drives need to be defragmented?

To find out the fragmentation percentage on your computer drives and check whether defragmentation is in order at the moment, you need to analyze your hard drives. After downloading and installing Disk Defrag, before you launch defragmentation or optimization, select the drives and run disk analysis. The app will read disk information, show you a true picture of the disk’s current condition and recommend actions to take.

Which Windows versions does Auslogics Disk Defrag support? Does it work with 64-bit and 32-bit processors?

Auslogics Disk Defrag supports the following Windows versions:

  • Windows 7 (32-bit and 64-bit)
  • Windows 8 (32-bit and 64-bit)
  • Windows 8.1 (32-bit and 64-bit)
  • Windows 10 (32-bit and 64-bit)
  • Windows 11

It does not support Windows 2000, 95, 98, 98SE, ME, XP or Vista.

There are no Mac or Linux versions.

Is Disk Defrag free?

Yes, Auslogics Disk Defrag Free is absolutely free for home and commercial use. To get access to advanced functionality, you can purchase a license to upgrade to Disk Defrag Pro or get the full-service professional drive optimizer – Disk Defrag Ultimate.

I have a Solid State Drive (SSD) as my system drive. How does your program handle SSDs?

Your SSD drive is safe no matter what Auslogics product you use on it. However, Auslogics Disk Defrag is a program that is made specifically for HDD drives. As such, it will detect your SSD drive and will not run defragmentation on it.

To boost the performance of your solid-state drive, you can download and use SSD Optimizer on it. The app offers safe SSD optimization algorithms that help extend your drive’s service life.

If you want to use both Disk Defrag and SSD Optimizer, save some money by purchasing them as the Disk Toolkit bundle.

What if I have both an HDD and an SSD?

If you have both HDD and SSD drives, Auslogics offers the Disk Toolkit bundle, specially designed for users with both drive types. This bundle includes the Disk Defrag and SSD Optimizer apps, comes at a special price and provides comprehensive optimization solutions for both HDDs and SSDs.

Is it safe to defragment my computer with Auslogics Disk Defrag?

During defragmentation, scattered pieces of data belonging to one file are rewritten into one place. The process is no different than regular data writing that happens when you create or modify a file, so the risks of data loss are no different either. Defragmentation is a safe process that is quite effective at helping your computer read data faster, and Auslogics Disk Defrag is a safe tool that helps maximize these effects.

Disk Defrag has been helping users around the world improve hard drive performance since 2008. Auslogics’ proprietary technology has been tested and recommended by IT authorities, allowing Disk Defrag to be included in the Best Defragmenters lists multiple times. Safety has always been a priority for Auslogics’ developers, which is why the company’s software is often chosen by IT administrators for use in office environments.

With that said, regularly backing up important data on your PC is something you should make a priority regardless of what software you use for system maintenance.

How often should I defragment my HDD?

The recommended defragmentation frequency depends on how actively you use your computer, and especially – how much data writing happens during this use. For very active users who tend to save a lot of files, running defragmentation about once a week should be good. If you aren’t a heavy PC user, you may have your hard drives defragmented once a month. For very light users, every two or even three months may be enough. With Auslogics Disk Defrag, you can set up defragmentation to run on a convenient schedule. The program will first analyze your HDD and will run defragmentation only if it is needed.

Need more information or help? Contact us!

Auslogics Software is Recognized by Leading IT Authorities

Disk Defrag and other Auslogics software has been reviewed by popular IT magazines and leading online resources, featured in books and on TV, and recommended by technology experts worldwide.

Is Disk Defrag enough to get my computer running at its best?

Disk Defrag is a great solution for ensuring top data access speed for your hard drive. However, there may be other reasons why your computer is slow or glitchy. The factors affecting your system might include junk file accumulations, corrupt entries in the Windows registry, incorrect system or network connection settings or other speed-reducing issues.

Auslogics BoostSpeed is an easy-to-use and expert-recommended tool for PC maintenance and optimization. It lets you clean out junk files, resolve registry issues, eliminate slowdown causes, clear privacy traces to protect your confidential data and so much more. Learn more >>

Disk Defrag comes included as part of BoostSpeed to ensure continuously fast and stable PC performance.

Auslogics is Trusted by Millions of PC Users Worldwide

Dravine Vatoa
”Without a single shred of doubt, the cleanest, the most precise and easiest defragger I have ever used and I've been repairing, upgrading and building laptops and low to high end gaming stations as a hobby for zero cash since 2001. Have NOT found a defragger to even put a scratch on Auslogics disk defragmenter yet and even though I continue to look to enable me to constantly upgrade, I haven't found that holy grail yet.
Thanks Auslogics as you have made my life much easier.”
See review on Trustpilot
Cliff Shell
”I have two computers here at home, a desktop and a laptop, both of which were second-hand when I acquired them. Over the years, I have used several maintenance programs, but none matched the consistency of Auslogics in keeping my equipment in top form. I highly recommend all of their products!”
See review on Trustpilot
James Minotto
”Next to the Waugh brothers and Shane Warne, Auslogics is the best thing ever to come out of Australia! I've been in the technology sector for over 35 years and their software is an incredible value for money, the support is excellent and I have no reservations about recommending their products. Definitely a 6 !”
See review on Trustpilot
Download
Disk Defrag today
and speed up your hard drive
Version 12.0.0.0 | 20.5MB | Released: 2024.11.07.
Compatible with Windows 7, 8, 8.1, 10, 11.

Compare Disk Defrag Versions

Try the free Disk Defrag version to see how you like the app, or go with the Pro version for unlimited defragmentation and HDD optimization functionality.

Auslogics
Disk Defrag
FREE
Disk analysis and
basic defrag
PRO
Today’s price:
$33.96
3 PC license
Ultra-fast defragmentation engine
Disk error check and repair
Special HDD optimization algorithms
Disk cleanup before defrag
Wipe free space on drives
Schedule automatic defrags
Ask a Question option for live expert answers at a click of a button
1 question
3 questions

Disk Defrag 12

for HDD drives
Buy now

SSD Optimizer

for SSD drives
Learn more

Disk Toolkit

bundle
Learn more

Purchase Disk Defrag Pro today
and give your disk drives the ultimate boost

Disk Defrag Pro
-15%
Today’s price:
$33.96/year ($39.95)
1 year subscription
3 PC license
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