84,488,480 programs installed

Should I remove MyDefrag?

What percent of users and experts removed it?
7% remove it93% keep it
Overall Sentiment
Very good
What do people think about it?
(click star to rate)
How common is it?
Global Rank #2,618
United States Rank #2,453
Reach 0.2344%
Lifespan of installation (until removal)
< 19.85 days
585.61 days >
Average installed length: 307.69 days


VersionDistribution 100.00%

Other programs by J.C. Kessels

MyDefrag v4.3.1

What is MyDefrag?  (from J.C. Kessels)

MyDefrag is a disk defragmenter and optimizer (a maintenance utility to make your harddisk faster) for Windows 2000, 2003, XP, Vista, 2008, Win7, and for X64. It is freeware, no time limit, fully functional, no advertisements. Fast, low overhead, with many optimization strategies, can handle floppies, USB disks, memory...  Read more


MyDefrag v4.3.1 is a program developed by J.C. Kessels. During setup, the program registers itself to launch on boot through a Windows Schedule Task in order to automatically start-up. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times (the schedule varies depending on the version). The main program executable is mydefrag.exe. The software installer includes 12 files and is usually about 2.76 MB (2,891,933 bytes). In comparison to the total number of users, most PCs are running the OS Windows 7 (SP1) as well as Windows 10. While about 52% of users of MyDefrag come from the United States, it is also popular in France and Germany.

Program detailsProgram details

URL: www.kessels.com
Installation folder: C:\Program Files\MyDefrag v4.3.1\
Uninstaller: "C:\Program Files\MyDefrag v4.3.1\unins000.exe"
Estimated size: 2.76 MB

Program filesFiles installed by MyDefrag v4.3.1

Program executable:mydefrag.exe
Name:Jeroen Kessels Defrag (MyDefrag)
MyDefrag Script Interpreter
Path:C:\Program Files\mydefrag v4.3.1\mydefrag.exe
Additional files:
  • unins000.exe - Setup/Uninstall

Program behaviorsBehaviors exhibited

2 Scheduled Tasks
  • MyDefrag.exe is scheduled as a task named 'MyDefrag - Weekly' (runs weekly on Saturdays at 12:00).
  • unins000.exe is scheduled as a task with the class '{98123D4D-F20A-49C1-8CE8-81DEC61A0BC1}' (runs on registration).
Scheduled Task (Boot/Login)
  • MyDefrag.exe is automatically launched at startup through a scheduled task named MyDefrag.

Program resource utilizationResource utilization averages

Memory:30.19 MB
21.09 MB average
Total CPU:0.0631747304%
0.031193% average
Kernel CPU:0.03988033%
0.016088% average
User CPU:0.02329440%
0.015104% average
CPU cycles/sec:10,138,936
8,062,084 average
I/O reads/min:658.49 KB
435.61 KB average
I/O writes/min:1.04 KB
105.02 KB average

How do I remove MyDefrag?

You can uninstall MyDefrag from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program MyDefrag v4.3.1, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove MyDefrag.

Win 7 (SP1) 58%
Win 7 0%
Scheduled task? Yes
(Runs on Windows boot)
Uninstall it 7%
Keep it 93%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 60.27%
Windows 10 20.89%
Windows XP 11.41%
Windows Vista 7.30%
Windows Server 2003 0.13%
Which OS releases does it run on?
Windows 7 Home Premium 31.20%
Windows 7 Professional 13.15%
Windows 7 Ultimate 12.96%
Microsoft Windows XP 11.27%
Windows 10 Home 5.66%
Windows Vista Home Premiu... 5.62%

Distribution by countryGeography

51.53% of installs come from the United States
Which countries install it?
  United States 51.53%
  France 7.72%
  Germany 4.87%
  United Kingdom 4.75%
  Italy 3.98%
  Canada 3.09%
  Japan 2.07%
  Australia 1.98%
  Brazil 1.70%
  Spain 1.35%
  Finland 1.32%
  Netherlands 1.05%
  Poland 0.91%
  Belgium 0.77%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 24.62%
Dell 24.19%
Acer 15.98%
ASUS 9.87%
Toshiba 5.84%
Samsung 3.03%
Intel 2.92%
Lenovo 2.34%
American Megatrends 1.61%
Sahara 1.19%
Common models
HP Pavilion dv6 Notebook ... 7.28%
HP Pavilion dv7 Notebook ... 6.19%
HP Pavilion g6 Notebook P... 4.49%
ASUS All Series 3.28%
Dell XPS 8300 2.31%
HP Pavilion g7 Notebook P... 1.94%


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