Auslogics Disk Defrag for Windows

Used Auslogics Disk Defrag for Windows? Share your experience and help other users.

Key Details of Auslogics Disk Defrag

Defragment your disks and improve computer performance and stability.
Last updated on July 24, 2025
There have been 3 updates
Virus scan status:
Clean (it’s extremely likely that this software program is clean)

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Developer’s Description

Defragment your disks and improve computer performance and stability.

Disk Defrag will speed up your computer by optimizing file system. It can defragment files, consolidate free space and move system files to the faster part of the disk. With Disk Defrag you will get the maximum out of your hard drive performance. It is supplied with a powerful engine and smart algorithms which allow Disk Defrag to run much faster than similar tools. And with its comprehensive reports you will always be aware of what have been done. Disk Defrag features fast and safe defragmentation of the disk drives, optimization of clusters structure and file system for even better disk performance.

Auslogics Disk Defrag for Windows

Used Auslogics Disk Defrag for Windows? Share your experience and help other users.

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Full Specifications

GENERAL

Release: January 16, 2023

Latest update: July 24, 2025

Version: 12.0.0.2

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows 8.1
Windows Vista
Windows XP
Windows 7
Windows 8

POPULARITY

Total Downloads: 14,433,007

Downloads Last Week: 5

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Last Updated

User Reviews

4.4/5

4054 User Votes

Auslogics now packed with MALWARES
mikemtn55January 19, 2017
Pros
Actual Defrag works great, sadly now packed with many varied MALWARES
Cons
MALWARES included at no extra charge
Summary
A once great program, now gone over to the dark side, a purveyor of MALWARES. Don't do it !
WAS the best, now loaded with Malware, avoid!
torontomikeyJanuary 6, 2017
Pros
WAS the best, now terrible!
Cons
So sad, I've used this defrag software for years, and now I've tried the latest version 3 times on 3 pc's and in ALL instances, it hijacked my chrome and I had 63 malware items found when I ran Malwarebytes. I guess I will have to find a new defrag program, goodbye Auslogics, you just lost a long time supporter.
Summary
Was the best, now the worst, installs ad/malware, why they did this I do not know, if anyone has any recommendations for another defrag program let me know, thanks!
PUPs, Junk, and doesn't work
Eight character userJanuary 1, 2017
Pros
None. This used to be a decent program, but not anymore.
Cons
- Installed unwanted programs - Only defragged 58% of drive. Had to run another defragger behind it. - Left behind junk registry keys and folders on uninstall
Summary
I do not recommend this program, or company, at all.
Was good, now iffy
Markott8December 23, 2016
Pros
Small, fast defragmenter. Relatively effective for me for several years.
Cons
Lately (as of Dec. 2016) has installed two other apps without any warning or chance to decline. They are an optimizer/malware finder/junk file deleter AND a driver updater. Malwarebytes now labels ALL three of these apps as PUPs, which it never did before. I finally uninstalled them all.
Summary
Good, basic defragmenter which has suddenly began installing other unwanted apps.
Good to give it a try.
elinarqqOctober 8, 2016
Pros
No found yet.
Cons
It is free. And I use other products of this.
Summary
I will not keep it for a long time I think.
Avoid for now
Reindeer911October 2, 2016
Pros
Offers more features than previous versions, including ability to defrag SSD drives.
Cons
The latest version of this program is still very buggy and not ready for prime time. Some features do not work, such as the "quick defrag" option. Scanning hard disks is now agonizingly slow... before this "upgrade" a basic scan and defrag of all my drives could be accomplished in as little as 1:30 minutes, and this is on a system with 24 TB storage. Now to do a full scan on all drives will take more than 30 min, and that is with minimal fragmentation. Part of the problem is that while the previous version could do multiple disks at the same time, it seems the latest version scans and defrags the disks in series. An even more bothersome aspect is that now Auslogics attempts to bundle BoostSpeed in with the defrag. Of course the program itself is useless unless you pay, attempts to scare the user into thinking there is something seriously wrong with their machine, and of course uses intrusive pop-ups in the process. VERY unethical for a company that claims to be on the level.
Summary
Would avoid the current version (7.0) at all costs... either wait to see if Auslogics will bother to fix this mess with the next update, or roll back to an earlier version. This really is a shame, and a perfect example of what happens when the manufacturer of a good product gets greedy. I've been recommending Disk Defrag for years to friends and clients, but until this product is properly fixed and debugged, I can no longer recommend this product in good conscience.
STAY AWAY FROM AUSLOGICS - IT''S A TRAP TO GET YR MONEY
gospelmidiSeptember 5, 2016
Pros
The Disk Defrag works well on my SSD, even allowing me to do a one-time actual defragment before the SSD TRIM, which Smart Defrag would not allow.
Cons
I usually watch closely for stowaway installs, but BoostSpeed got by me. I installed Auslogics Disk Defrag BASED UPON THE DOWNLOAD.CNET.COM Editor's rating of 4 1/2 stars along with the users' rating of 4 1/2 stars. BIIIIGGGGG Mistake. I should have researched elsewhere. Unknown to me, Auslogics Disk Defrag also installed Auslogics BoostSpeed, which I did not need and do not want. When I saw that BoostSpeed had installed, I ran it. SECOND BIIIGGGGG Mistake. I should have known that a stowaway program, which installed without asking me first, could not be a good thing. BoostSpeed did little or nothing, so I attempted to exit the program. But it insisted on offering me the paid version for $19.99, and IT WOULD NOT EXIT WITHOUT MY PURCHASING IT. This stowaware had just become RANSOMWARE. THIRD BIIIIGGGG MISTAKE... No, I did not bite. Windows 8.1 Task Manager closed the program. Now the BoostSpeed stowaware/ransomware WILL NOT INSTALL, AND ITS FILES CANNOT BE DELETED.
Summary
AVOID AUSLOGICS. EVEN A GOOD PROGRAM LIKE DISK DEFRAG CAN BE USED TO TRAP YOU INTO PAYING A $20 RANSOM FOR SOMETHING ELSE YOU DIDN'T WANT. AUSLOGICS MAY HAVE BEEN A STRAIGHT UP COMPANY UNTIL RECENTLY, BUT IT APPARENTLY HAS BEEN SWALLOWED UP BY CORPORATE CARNIVORES WITH SUBSTANDARD BUSINESS ETHICS. S - T - A - Y A - W - A - Y !
I ran this program and a lot of my files were deleted
ITNoob123August 30, 2016
Pros
None......
Cons
I ran this program and a lot of my files were deleted. Tons of old photos, work related documents, resume, etc. were gone. I did a search on my computer and these files were not moved to a new location nor were they in the Recycle Bin. They are just gone. Worst part is, I don't think the computer became any faster.
Summary
Has this happened to anyone else? What can I do to recover my lost files?
The best freebie
jimmy.howlettAugust 22, 2016
Pros
Perhaps this is one of the best freebie I've ever seen. Moreover, this program very useful. If you ever did a defragmentation, you will realize that it is a very useful program.
Cons
I did not find cons
Summary
Very easy to use. It is like a magic wand, each wizard has to have it)
Compact and fast defragmenter.
philip69hamAugust 22, 2016
Pros
This is a free program! Do you understand? FREE! I'm shocked! Really, it's the best program for improve PC's performance by defragmenting and re-arranging files on disk. And for free. Thanks Auslogics, it's a really cool. Thanks!
Cons
I didn't find
Summary
P.S I'm also using your product BoostSpeed. Very useful program.