Defraggler: Better Defragmentation Software For Windows

Danny Stieben 12-09-2011

defragmentation softwareAlternative defragmentation software has been mentioned for years and years now, as most people deem the default defragmenter that comes with Windows to be insufficient.


There are plenty of different solutions that try to out-do each other, some free and some paid. For the few moments when I do use Windows, I find the free options to be good enough. However, you can’t just pick any free solution. You need to know which ones actually make a difference on your system.

About the Defraggler Defragmentation Software

Defraggler could quite possibly be the most popular free defragmentation tool out there. It has been mentioned numerous times 8 Best Defragmenters to Keep Your PC Running Like New Read More here at MakeUseOf, but all of those mentions have some pretty old timestamps attached to them; so because of all the changes since then a new review is in order. Defraggler, along with its Piriform brother CCleaner Freeware to Speed up your Computer Read More , have gotten some major version boosts to show that they are much more capable tools now. Of course, Defraggler is still available as a portable app for your USB drive.

Main Window

defragmentation software
While Defraggler isn’t as simple as the default Windows defragmentation tool (which in my opinion is way too simple), it is still very easy to learn, use, and configure. When you first launch the program, you’ll see three main areas of the main window. The top third is for displaying the possible drives which you can use Defraggler on along with some other useful information. The middle third of the screen shows you what your hard drive looks like in terms of where files are located and if they are contiguous or fragmented. The bottom third (which actually takes up the bottom half of the window) contains lots of other useful information organized into nice little tabs.

You can see what’s currently being defragmented along with a pie-chart of hard drive space usage. Another tab lets you see a file list of all fragmented files. Yet another tab allows you to search for certain files that are fragmented, unless you choose the option to include non-fragmented files. The last tab shows you what each color represents on the drive map (middle third), and allows you to change the colors as you please.

disk defragmentation


Extra Actions

Defraggler offers plenty of other options that can save you time and possibly your butt. Via the Action menu, you can also choose to do a quick defrag, defrag specific folders or even just files, check your drive for errors (not using the Windows drive checker but instead its own), and defrag your hard drive’s free space. Indeed, all options except for the defragmentation of free space will be much shorter than a full drive defragmentation.

Some More Run-Time Options

defragmentation software
This nifty tool has a couple configurable options found under Settings > Options that mainly pertain to certain rules the program should follow while defragmenting. You also have a couple of other choices for how and when the program should run, such as scheduling, a “boot time defrag” which simply defragments some basic files in shorten boot time, the process priority, and whether Defraggler should shut down the computer after it has completed defragmenting.


See? I told you Defraggler wasn’t all that hard to master! It will take no time at all for this little one to become one of your new, default big boys. It brings great results to your system, and helps you pinpoint certain problem areas on your hard drive (such as 2GB+ files on your system that you don’t really need, as they easily fragment and are hard to defragment). Overall, this is a great tool that everyone, both professional system maintainers as well as regular home users should employ.

Which defragmentation software tool do you use? Why do you choose it over anything else? Is it free or paid? Let us know in the comments!


Explore more about: Computer Maintenance, Defragmentation, Hard Drive.

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  1. Lisa Adler
    September 20, 2016 at 10:43 pm

    I like the feature that allows you to move large files to the end of the disk.

  2. Burhan Wscom
    October 29, 2011 at 12:23 pm

    IOBit's Smart Defrag is the one I use, and I consider it one of the best. It has auto-defrag, scheduled-defrag and boot-time system files and MFT Defrag options. It is a free alternative to the costly and heavy ones like System Mechanic, TuneUp Utilities, and PerfectDisk.
    I never tried Auslogics OR Piriform Defraggler.
    Hope they are good as well.

  3. Wvgurp
    October 3, 2011 at 8:50 pm

    my Defraggler is O&O Defrag works in the background,always optimized. 20 Euro!

  4. John T
    September 15, 2011 at 7:42 pm

    I've always preferred diskeeper to any other defragger. They are definitely leading the way. 

    • Danny Stieben
      September 16, 2011 at 10:05 pm

      Diskeeper is indeed a good program from personal experience. It's just a little sad that it's not freeware.

  5. Liz
    September 13, 2011 at 4:38 pm

    I like Auslogics Disk Defrag better. It's a lot faster and has more options than Defraggler.

  6. Ivan kolevski
    September 13, 2011 at 9:20 am

    I use Puran Defrag. It is the only freeware application available that has the most features that paid defraggers have. It is superb piece of software.

    • Danny Stieben
      September 16, 2011 at 10:04 pm

      I've never heard of Puran Defrag. I'll definitely take a look at it, thanks for the tip!

  7. Anonymous
    September 13, 2011 at 8:21 am

    I use Auslogics, recommended by MOU now am CONFUSED what should I use :(

    • Aibek
      September 14, 2011 at 8:35 am

      they are both good, I personally prefer Defraggler as well but there are a number of people on our team who would reocmmend Auslogics.

    • Danny Stieben
      September 16, 2011 at 10:04 pm

      Yes, some people here at MUO prefer one while others prefer the other. Both are great products, and you're welcome to try them both out in order to see which you personally prefer.

  8. Darin S. Lory
    September 13, 2011 at 1:57 am

    I've had great luck with Defraggler!  I have QuickClean in my McAfee Internet Security but it didn't seem to be doing the job.  I ran Defraggler on my 320GB 5400rpm laptop drive, and in 3 passes it was COMPLETELY defragged.  It's been running like a top since!

  9. Anonymous
    September 12, 2011 at 11:21 pm

    i have this but i'm not convinced I need it, doesn't windows 7 defrag in the background when it's idle

    • Danny Stieben
      October 1, 2011 at 5:57 am

      No it does not. It still has to schedule a time to run the defrag, which will then run in the background. But it will not automatically start when the computer is idle (unless there is a trick in the Task Manager to do that).

      • Anonymous
        October 1, 2011 at 8:44 am

        Well however it does it, you don't NEED another program to do it

  10. Tuiruru
    September 12, 2011 at 9:12 pm

    Yeah, I use Auslogistics defrag as well. Have you got ant info on how the two compare?

    • Danny Stieben
      October 1, 2011 at 5:56 am

      I do not have a direct comparison between Defraggler and Auslogics, but you can find a good number of articles about Auslogics by searching for them here on MakeUseOf. Then you can compare what you read in this article about Defraggler with the other articles about Auslogics.

  11. jello
    September 12, 2011 at 8:20 pm

    While I am always happy to see more and more free alternatives, I think Auslogics
    free disk defrag has served me well so far.  If i was without a defrag software, then I would move to the defraggler.

  12. Jochen
    September 12, 2011 at 6:56 pm

    Hi,I use mydefrag (, also free, much more customizable, smaller, faster.... :-)

    • Aibek
      September 19, 2011 at 9:17 am

      editor's note: the link was incorrect, so I slightly edited the URL

    • Danny Stieben
      October 1, 2011 at 6:04 am

      Thank you for the suggestion, Jochen!

  13. James Bruce
    September 12, 2011 at 5:33 pm

    Can you explain why Windows defrag utility sucks? I've always thought of defragging as quite a simple process of moving bits here over there. Am I wrong?

    • Craig Galway
      September 12, 2011 at 6:22 pm

      Essentially correct.  For those who don't know, it's moving those bits so that individual files can be loaded from sequential physical locations on the disk, rather than scattered across the face of the platter.  Since hard drives have to physically locate data on the drive as it spins, this saves some time the next time you access that file.

      As far as why the Windows version sucks, I imagine it gets the same job done in the end, but windows apps tend to be more resource intensive along the way and perhaps less user friendly than some of their freeware and open source counterparts.  Microsoft may actually be changing this since Windows 7 seems to be a stable and efficient operating system, but then again Vista was their last one, so I'm not prepared to call it a trend yet. 

      I don't know more specifics than that because drive defragging hasn't been high on my to do list in a while.  It used to be more important to me when drives were slower.  It is good to do it once in a while, though.

    • Danny Stieben
      September 16, 2011 at 2:04 am

      The actual action of moving those bits and pieces is quite simple, but the methodology of doing that isn't. Not only do you want all the bits of a file to be together instead of scattered around, but advanced defragmenters will also decide whether certain files should be moved to the front or back of the hard drive to decrease the seek time for commonly used files.

  14. Craig Galway
    September 12, 2011 at 4:43 pm

    The last time I ran a defragmenter, I used Defraggler.  But honestly, I seldom even think of defragging anymore.  As hard drives are multiples faster now then they were a few years ago, I wonder how many people still bother.  

    You have inspired me though.  I'm going to open my software and schedule it to run, infrequently.  It can't hurt.  If I were having many issues with slow load times, though, I'd probably suspect inadequate ram and too much multitasking these days.  The new drives are just fast.

    • Aibek
      September 19, 2011 at 9:15 am

      Defragmentation is important even for faster drives. You should defragment once in a while even if you have one of the fastest hard drives out there. This doesn't apply to SSD drives though, they don't need to be defragmented.