What is SmartDefrag.exe?

SmartDefrag.exe is an executable file that is part of the Smart Defrag software developed by IObit. This software is typically located in the C:\Program Files (x86)\IObit\Smart Defrag directory.

Smart Defrag is a disk defragmentation and optimization tool. It is designed to optimize your computer's performance by defragmenting hard drives or solid-state drives. The software can also perform other tasks such as cleaning up junk files, optimizing disk health, and improving system performance.

Over time, files on your computer can become fragmented, meaning they're spread out across different areas of your hard drive. This can slow down your computer, as it takes longer to access these files. Smart Defrag helps to rearrange these files and free up disk space, making your computer run more efficiently.

While Smart Defrag is a legitimate software, there are a few reasons you might want to remove it. Some users have reported that it can cause system instability or slow down your computer, especially if it's running in the background. If you didn't intentionally download Smart Defrag, it could be bundled with other software and could potentially be considered as unwanted application.

Before removing SmartDefrag.exe, make sure it's not a malware disguised under the same name. Use a reliable antivirus software to scan your system. If it's a legitimate file and you still want to remove it, you can uninstall the Smart Defrag software from your system.

Click to Run a Free Scan for SmartDefrag.exe related errors

SmartDefrag.exe file information

Windows Task Manager with SmartDefrag — SmartDefrag.exe process in Windows Task Manager

The process known as Smart Defrag (version 6, 5, v4, v2, v3, 8, 7) or smart defrag (version 9, 8) belongs to software Smart Defrag (version 4, 2, 3, 9, 4 Pro, 8) or smart defrag or Smart defrag by IObit (www.iobit.com).

Description: SmartDefrag.exe is not essential for the Windows OS and causes relatively few problems. SmartDefrag.exe is located in a subfolder of "C:\Program Files (x86)" or sometimes in a subfolder of the user's "Documents" folder—common is C:\Program Files (x86)\IObit\Smart Defrag\. Known file sizes on Windows 10/11/7 are 4,534,560 bytes (8% of all occurrences), 6,033,680 bytes and 77 more variants.
SmartDefrag.exe is not a Windows core file. The file is digitally signed. The program is not visible. The SmartDefrag.exe file is a Verisign signed file. The software listens for or sends data on open ports to a LAN or the Internet. SmartDefrag.exe is able to connect to the Internet, monitor applications, manipulate other programs and record keyboard and mouse inputs. Therefore the technical security rating is 36% dangerous, but you should also take into account the user reviews.

Uninstalling this variant: It is possible to do the following:
1) uninstall the program using the Control Panel ⇒ Uninstall a Program ⇒ Smart Defrag 6 or Smart Defrag 5
2) contact www.iobit.com to assist you
3) check the vendor’s website for a newer version.

Recommended: Identify SmartDefrag.exe related errors

If SmartDefrag.exe is located in a subfolder of C:\, the security rating is 46% dangerous. The file size is 5,923,600 bytes. The SmartDefrag.exe file is a Verisign signed file. SmartDefrag.exe is digitally signed. The program has no visible window. Windows Task Scheduler starts this process at a specific time. The application uses ports to connect to or from a LAN or the Internet. The file is not a Windows core file. SmartDefrag.exe is able to manipulate other programs, connect to the Internet, record keyboard and mouse inputs and monitor applications.
Uninstalling this variant: It is possible to do the following:
1) uninstall the program using the Control Panel ⇒ Uninstall a Program ⇒ Smart Defrag 6
2) contact www.iobit.com to assist you
3) check the vendor’s website for a newer version.

Important: Some malware camouflages itself as SmartDefrag.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder, for example PotentialRisk.PUA/SmartDefrag.ajj (detected by F-Secure), and Mal/Generic-S (detected by Sophos). Therefore, you should check the 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.

Score

User Comments

Accelerate the whole system with fast and efficient disk defragment.
GilberT (further information)

Smart Defrag Software.

If you leave your computer idle for any length of time, Smartfrag.exe_32 starts using 95-97% of available processing power. It does not stop using it when computer becomes active again. Only solution is to cancel the process in Task Manager. Had same issues on all versions
Dave R

Useful and defrags much more efficiently than Windows
Eric

defrag my hdd
Aung

It's a very superior program to MS Windows defrag & 1000 times better!?! It defrag your PC & you can use other programs at the same time, like even surfing the web with Firefox browser for example!?!
Daniel B. Reid

Summary: Average user rating of SmartDefrag.exe: based on 11 votes with 6 user comments. 9 users think SmartDefrag.exe is essential for Windows or an installed application. 2 users think it's neither essential nor dangerous. One user is not sure about it.

Best practices for resolving SmartDefrag issues

A clean and tidy computer is the key requirement for avoiding problems with 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 executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To get your computer running as fast as it did on day one, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.

To help you analyze the 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. A good Bantivirus software detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

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