- Quick specs
- Price: Free
- Operating system: Windows 2003, Windows Vista, Windows Me, Windows Server 2008, Windows NT, Windows XP, Windows 2000, Windows 98
- Date added: February 19, 2009
- Total Downloads: 4,578,672
- Downloads last week: 151,601
- See full specifications
A newer version of Smart Defrag is available.
(Download doesn't provide access to previous versions of this program.)
- CNET editors' rating: stars
- Average user rating: stars out of 1215 votes
See all user reviews -

CNET editors' review
Reviewed by: CNET Staff
It's hard to stand out in the crowded field of defraggers, but SmartDefrag is able to do so with an unexpected twist.
Along with quick analysis and scans, SmartDefrag boasts an automated defragger that continually defrags the files that you use the most, and does it without becoming a persistent drag on your system resources. When running in the background, the program only eats up 14MB of RAM, so it's possible to run it smoothly on older machines.
Other features we like include a scheduler you can set up to defrag whenever you want and some customization features if you want the program to start when Windows loads or right before logging off. You also can set it to shutdown your computer when it's done defragging your hard drives and partitions.
Overall, if you would like a handy defragger with options for scheduling and more, this is a great defragger for both novices and more experienced users.
Publisher's description
From IObit :Disk fragmentation is generally main cause of slow and unstable computer performance. Smart Defrag helps defragment your hard drive most efficiently. Smart Defrag not only defragments computer deeply but optimizes disk performance. With 'install it and forget it' feature, Smart Defrag works automatically and quietly in the background on your PC, keeping your hard disk running at its speediest. Smart Defrag is complete free for home, organization, and business.
Version 1.11 improves multi-language support.
What's new in this version:
+ Improved multi-language support * Fixed general bugsMore popular System Utilities downloads
- 215,505 downloads 1. Glary Utilities
- 91,042 downloads 2. Smart Defrag
- 44,461 downloads 3. Auslogics Disk Defrag
- 17,309 downloads 4. Glary Utilities Pro
- 16,920 downloads 5. Partition Wizard Home Edition
- See all System Utilities downloads
User reviews of Smart Defrag 1.11
- Average user rating: 4.2 stars out of 1215 votes
- My rating: 0 stars Write review
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Showing 5 of 354 user reviewsSee all 354 user reviews
This software version | All versions -
Version: Smart Defrag 1.11
"I am not sure if it is good or bad"
Pros: It seems to be very fast.
Cons: Not sure what to say here
Summary: It appears to be fast but I don't really know if it is doing a good job or not. I wish there was a criteria of how to judge the performance of this type of software.
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Version: Smart Defrag 1.11
"i like it alot but i find it hard to work out at first"
Pros: it fragments fast and the option to defragment every week
Cons: not understanding and i cant see a help menu on it to help you and guid you to tell you what wood be the recommended way to set it
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Version: Smart Defrag 1.11
"The best freeware defrag around!"
Pros: It's easy to install and configure. You can optimize your drive(s) as well as defrg. I've used it for a very long time trouble free.
Cons: I haven't found any yet.
Summary: SmatrDefrag does what it says and it's price is right...FREE!
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Version: Smart Defrag 1.11
"This works fast and you can see what's happening."
Pros: I like being able to see the defrag process.
Cons: None that I've found.
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0 out of 1 people found this review helpful
Version: Smart Defrag 1.11
Pros: it is very fast & useful
Cons: I can't see any thing wrong
Summary: very good program, keepup the good work
Thanks - See all 354 user reviews Write review
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