JkDefrag

Download Editors' Rating:
3.5
Very good
Average User Rating:
4.3
out of 121 votes

Quick Specs

  • Version:
    3.36
  • Total Downloads:
    99,557
  • Date Added:
    November 03, 2008
  • File Size:
    1.99MB
  • Downloads Last Week:
    93
  • Operating Systems:
    Windows 2000/XP/2003/Vista

Editors' Review

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Ugly and hardworking, JkDefrag is a program that only a developer or expert user could love. The application performs its single function: to defragment and optimize any disk. The interface uses the same color language as standard defrag utilities to represent clusters, but any attempt at visual nicety ends there. Instead, the progress screen of JkDefrag most resembles an 8-bit 8086 display error.

The JkDefrag download is a ZIP file containing three methods of accessing the same function: the Windows version we used, a command-line .exe, and a screensaver .exe. You can set a few options for the screensaver tool, such as the screensaver you want displayed. Apart from these items, there are no settings and little explanatory text within the program. Disk defragmentation is often a process left to chug away overnight; compared with this time frame, JkDefrag is a Japanese bullet train. We ran the program in the background while performing other tasks, and it completed its work in just over 2 hours.

Although JkDefrag worked well for us, we were a little disturbed that when we clicked on the executable, the program began the defrag process on our C:\ drive immediately. The developer states that the program will work on any device that Windows sees as an independent disk, but it is not clear how to point the program at anything in particular. Still, JkDefrag is an excellent tool but its almost total lack of interface options makes it appropriate only for expert users.

 
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Publisher's Description

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User Reviews
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Results 1-10 of 28

  • 1 stars

    "TOTAL LIE-ARRHEA"

    December 24, 2013   |   By navelbutton

    Version: MyDefrag 4.3.1

    Pros

    no pros at all!

    Cons

    A LOT OF CONS, TOO MANY TO LIST HERE.

    Summary

    THIS PROGRAM HAS A VIRUS. DO NOT DOWNLOAD IT. E-mail me at jesuschrysler1@live.com

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  • 5 stars

    "Great Defrag program, period."

    September 04, 2013   |   By Blues22475

    Version: MyDefrag 4.3.1

    Pros

    Does Defragmenting efficiently and effectively.
    Interface is straight-forward and improved for easier access.
    Customizable scripts and commands to run for more advanced users.

    Cons

    The defrag interface (were it shows you everything while defragging) is quite ugly.

    Summary

    Other than the interface, this program does its job very well. Out of several defragmenter programs I have used in my lifetime, this one is the best (better than Windows' and some others like Auslogic's Defrag).

    Have used this on several machines and have had no issues at all. If you don't want to defrag this tool also lets you optimize your Hard Drive.

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  • 5 stars

    "The best defragger for Windows (Vista) I've found."

    June 02, 2013   |   By seyhall

    Version: MyDefrag 4.3.1

    Pros

    It's fast.
    It has a script language for the techies.
    It comes with scripts already made for non techies.
    It automatically schedules itself to run at 5am.
    Disk map is very detailed, and you can zoom in and out.
    It's free.

    Cons

    I wish it wouldn't do just one run. If you stop it or it finishes defragging a disk, you can't then defrag another disk. You have to quit the application and then start it again.

    There's no color key in the application.

    The gui could be fancier.

    Summary

    Get it. Install it. It's great. But as always, download only directly from the publisher because the CNet installer is (a) unnecessary, and (b) loaded with toolbars and other foolishness.

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  • 5 stars

    "Best defrag program PERIOD"

    November 02, 2012   |   By creamedcorn

    Version: MyDefrag 4.3.1

    Pros

    Fast
    Automated
    Basic stuff is simple
    Fully customizable (via scripts) for advanced users
    Scripts
    More scripts

    Cons

    It can't make coffee
    It probably makes no difference if you have a solid state drive

    Summary

    If you are looking for the best program to optimize your hdd performance then this is it. It runs completely off of scripts so you can use the ones it comes with or write your own. For those of us who play games that access the hard drive constantly (i.e. WoW), we can customize the scripts to put those files at the beginning of the drive so that they perform wonderfully, even on a full hard drive. There is documentation on the website so anyone who has done some light programming should feel right at home with writing scripts. This is an absolute must for power users.

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  • 5 stars

    "Simply the BEST Defrag Program out there"

    May 11, 2012   |   By Zowie2010

    Version: MyDefrag 4.3.1

    Pros

    Every other defrag program I've tried defrags the files OK, but leaves them scattered all over your hard drive. Therefore, while 25% of your drive may be "free space", it's contained in thousands of tiny little fragments of free space. This program not only defrags yours files, but gives you nearly unlimited options as to how to reorganize them on your hard drive so you have large, contiguous blocks of free space.

    The hard drive map is VERY detailed (see the Con below). However, once you get used to it, it is fantastic to see exactly where your files are located and where the free space is on your hard drive.

    You can move your cursor over any portion of your hard drive map, and it tells you the name of the file located in that portion of your hard drive and how many fragments it is divided into.

    Cons

    The first time you open the GUI, it looks like abstract art. Unlike most defrag programs, it is showing you the status of each and every block and sector of your hard drive.

    It would be nice if there were a color key on the screen to remind you what all the color patches mean on your hard drive. You have to go to Help to get this information.

    Summary

    Download this one and forget the rest!

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  • 5 stars

    "Looks aren't everything"

    January 24, 2012   |   By spelingchampeon

    Version: MyDefrag 4.3.1

    Pros

    Free. Fast. It seems to do a great job, and what's not to like.

    Cons

    Haven't found a way to start the program and have it shut down the computer automatically when complete.. but not a big deal.

    Summary

    This is a basic defrag program that doesn't have the pretty interface. It's almost like running DOS again. The screen looks old, but it's not about the appearance, it's about the job it does.. and it does it very well.

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  • 5 stars

    "Best defrag since Norton Speedisk"

    January 03, 2012

    Version: MyDefrag 4.3.1

    Pros

    The only free defrag I've found that will move start-up files to the front of the disk as well as this one, and sorts all files.

    Cons

    Interface but for free, who's complaining?

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  • 5 stars

    "Best disk defragmenter and optimizer out there IMHO"

    December 26, 2011   |   By musicman4you

    Version: MyDefrag 4.3.1

    Pros

    Best defragmenter and optimizer program I have used.I was using this back when it was called JKdefrag.I tried others like Auslogics but this one is better in my opinion and does a better job.Auslogics left files scattered all over my hard drive and didn't optimize and line them up right.MyDefrag works like the old Norton Speed Disc use to but faster.With the other Free ones I didn't see as much speed difference as I do with this.Number one in my book.

    Cons

    There are non

    Summary

    Same as above.It may not be ranked number 1 but I think it is.Best defragmenter and optimizer program I have used.I was using this back when it was called JKdefrag.I tried others like Auslogics but this one is better in my opinion and does a better job.Works like the old Norton Speed Disc use to but faster.With the other Free ones I didn't see as much speed difference as I do with this.Number one in my book.

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  • 5 stars

    "WOW, great defrag program!"

    November 14, 2011   |   By jctalbot

    Version: MyDefrag 4.3.1

    Pros

    This is a great defragger. It's my new everyday defrag program.

    Cons

    GUI is lacking but it works. Wish it had a boot option.

    Summary

    I can't count the number of computers that I've reformatted in the last ten years. I usually use the system defrag after all software and updates are installed. I've used other defraggers in the past but none seemed to be any better than the system defragger. Figured I'd try something new this time so I tried a couple other defraggers. First I tried Defraggler and UltraDefrag right after the install. I noticed no difference in speed at all just like the system defragger. Then I gave MyDefrag a try on the same fresh install and holy #$%! I cant believe the difference in app loading. All MSOffice programs load instantly on a p4 2.66. All other software loads quick as well. I really can't believe the difference from the other defraggers I ran on the same computer. I have several of the same p4 2.66's and none of them have ever been this responsive.

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  • 5 stars

    "Excellent Defragger"

    November 12, 2011   |   By KelvinCEO

    Version: MyDefrag 4.3.1

    Pros

    I can actually notice a performance increase unlike Defraggler, and there is a wide variety of scripts to choose from for your every day needs including daily, weekly, and monthly. It's free to!

    Cons

    (Can) take a while to defrag, but its performance outweighs this by any level.

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  • Results 1-10 of 28

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    Full Specifications

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    General
    Publisher Jeroen Kessels
    Publisher web site http://www.kessels.com/
    Release Date November 03, 2008
    Date Added November 03, 2008
    Version 3.36
    Category
    Category Utilities & Operating Systems
    Subcategory Maintenance & Optimization
    Operating Systems
    Operating Systems Windows Vista, Windows 2003, Windows XP, Windows, Windows 2000
    Additional Requirements
    Download Information
    File Size 1.99MB
    File Name MyDefrag-v4.3.1.exe
    Popularity
    Total Downloads 99,557
    Downloads Last Week 93
    Pricing
    License Model Free
    Limitations Not available
    Price Free

    Previous Versions:

     
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