What is IObit SmartDefrag.exe?

The genuine IObit SmartDefrag.exe file is a software component of IObit SmartDefrag by IObit.
Released by Iobit, SmartDefrag is a hard disk defragmentation program. It utilizes a method of defragmentation that prioritizes more frequently used files and processes on the disk in order to improve efficiency. Available for free, SmartDefrag has the ability to run in the background and allows you to continue using your computer during the defrag process. Founded in 2004, IObit is an industry leader in PC optimization and security.

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the IObit SmartDefrag.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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IObit SmartDefrag.exe file information

The process known as Smart Defrag or Defrag disk fragments belongs to software Smart Defrag or IObit SmartDefrag by IObit ( or (

Description: IObit SmartDefrag.exe is not essential for Windows and will often cause problems. IObit SmartDefrag.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 1,870,592 bytes (31% of all occurrences), 2,453,264 bytes and 5 more variants. 
It is not a Windows system file. It is digitally signed. There is no description of the program. The program uses ports to connect to or from a LAN or the Internet. The program has no visible window. IObit SmartDefrag.exe is able to record keyboard and mouse inputs, monitor applications and manipulate other programs. Therefore the technical security rating is 46% dangerous; however you should also read the user reviews.

Uninstalling this variant: You can also uninstall Smart Defrag or IObit SmartDefrag from your computer using the Control Panel applet Uninstall a Program, search the support area on the IObit website or update the program.

Recommended: Identify IObit SmartDefrag.exe related errors

Important: Some malware camouflages itself as IObit SmartDefrag.exe. Therefore, you should check the IObit SmartDefrag.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

faster than windows defrag,works as good if not better
A diskdefragmenter.
iobit defrag is loaded when you install the iobit defrag but does not need to be running untill you decide to defrag
  mike hogi   (further information)
better defragmenter
It was on a PC that was just infected with Smart Fortress 2012 (USPS..exe trojan)
  IT support at chemical company  
It is near impossible to remove on the computer, very disappointing.

Rating chart

Summary: Average user rating of IObit SmartDefrag.exe: based on 8 votes with 6 user comments. 3 users think IObit SmartDefrag.exe is essential for Windows or an installed application. One user thinks it's neither essential nor dangerous. 2 users suspect danger. 2 users think IObit SmartDefrag.exe is dangerous and recommend removing it.

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Best practices for resolving IObit SmartDefrag issues

A clean and tidy computer is the key requirement for avoiding problems with IObit SmartDefrag. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the IObit SmartDefrag.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

IObit SmartDefrag.exe [all]