84,488,480 programs installed

Should I remove Smart Defrag?

What percent of users and experts removed it?
7% remove it93% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #13,726
United States Rank #10,911
Reach 0.0217%


2.1.2 1.17%
1.5.0 57.01%
1.4.5 23.36%
1.4.0 11.68%
1.3.0 6.78%

Other programs by IObit

Smart Defrag

What is Smart Defrag?  (from IObit)

Smart Defrag is a disk defrag tool designed for maximum hard drive performance. Based on IObit latest disk defrag engine and "Boot Time Disk Defrag" technology, Smart Defrag is created with the world's leading defragmentation ability. It not only provides defragmentation, but also intelligently streamlines your files b...  Read more


Smart Defrag is a program developed by IObit. The most used version is 1.5.0, with over 98% of all installations currently using this version. Upon installation and setup, it defines an auto-start registry entry which makes this program run on each Windows boot for all user logins. 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 programs's main executable is iobit smartdefrag.exe and has been seen to consume an average CPU of less than one percent, and utilizes about 14.59 MB of memory. The software installer includes 13 files and is usually about 5.45 MB (5,712,428 bytes). In comparison to the total number of users, most PCs are running the OS Windows 7 (SP1) as well as Windows Vista (SP2). While about 57% of users of Smart Defrag come from the United States, it is also popular in Canada and United Kingdom.

Program detailsProgram details

URL: www.IObit.com
Installation folder: C:\Program Files\IObit\IObit SmartDefrag\
Uninstaller: "C:\Program Files\IObit\IObit SmartDefrag\unins000.exe"
Estimated size: 5.45 MB

Program filesFiles installed by Smart Defrag

Program executable:iobit smartdefrag.exe
Name:Smart Defrag
Signed by:IObit Information Technology
Path:C:\Program Files\iobit\iobit smartdefrag\iobit smartdefrag.exe
Additional files:
  • TSCommon.dll - TSCommon (Scheduler service common library)
  • unins000.exe - Inno Setup (Setup/Uninstall)
  • NtfsData.dll
  • SDInit.exe
  • taskdll.dll

Program behaviorsBehaviors exhibited

Scheduled Task
  • IObit SmartDefrag.exe is scheduled as a task named 'SmartDefrag-BackUpBySmartDefragPortable' (runs weekly on Sundays at 10:00 PM).
Scheduled Task (Boot/Login)
  • IObit SmartDefrag.exe is automatically launched at startup through a scheduled task named AutoSmartDefrag.
Startup File (All Users Run)
  • IObit SmartDefrag.exe is loaded in the all users (HKLM) registry as a startup file name 'SmartDefrag' which loads as "C:\Program Files\IObit\IObit SmartDefrag\IObit SmartDefrag.exe" /StartUp.

Program resource utilizationResource utilization averages

iobit smartdefrag.exe
Memory:14.59 MB
21.09 MB average
Total CPU:0.0019474122%
0.031193% average
Kernel CPU:0.00115953%
0.016088% average
User CPU:0.00078788%
0.015104% average
CPU cycles/sec:35,319,978
8,062,084 average
I/O reads/min:1.52 MB
435.61 KB average
I/O writes/min:2 Bytes
105.02 KB average

How do I remove Smart Defrag?

You can uninstall Smart Defrag 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 Smart Defrag, 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 Smart Defrag.

Win 7 (SP1) 43%
Win Vista 1%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 7%
Keep it 93%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 48.36%
Windows Vista 24.30%
Windows XP 23.60%
Windows 10 3.74%
Which OS releases does it run on?
Windows 7 Home Premium 32.70%
Microsoft Windows XP 23.46%
Windows Vista Home Premiu... 17.06%
Windows 7 Ultimate 8.77%
Windows 7 Professional 5.69%
Windows Vista Home Basic 3.32%

Distribution by countryGeography

56.60% of installs come from the United States
Which countries install it?
  United States 56.60%
  Canada 6.15%
  United Kingdom 5.24%
  Italy 3.07%
  Sweden 2.35%
  Israel 2.35%
  Australia 2.17%
  Japan 2.17%
  Brazil 1.63%
  Netherlands 1.63%
  Germany 1.45%
  Singapore 1.27%
  France 1.27%
  Finland 1.27%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 27.52%
Dell 27.13%
Acer 11.63%
Toshiba 8.91%
Intel 4.65%
ASUS 4.65%
American Megatrends 3.10%
Sahara 2.33%
Lenovo 1.94%
Gateway 1.55%
Common models
Dell Inspiron 1545 2.94%
Dell Inspiron 1525 2.94%
HP Pavilion dv5 Notebook ... 2.94%
Dell Inspiron 530 2.21%
HP 550 2.21%
HP Pavilion dv6500 Notebo... 2.21%

About (from IObit)

Founded in 2004 by two creative and enthusiastic programmers, IObit is focused on providing consumers with innovative and comprehensive system utilities and security software for superior PC performance and security.
Publisher URL: www.iobit.com


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