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Smart Defrag

Automatically defragment your hard drive to ensure it's always running at peak performance

by Mike Williams

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Based on 7 ratings
License: Freeware
Operating Systems: Windows 10, Windows 7 (32 bit), Windows 7 (64 bit), Windows 8, Windows Server, Windows Vista (32 bit), Windows Vista (64 bit), Windows XP


Languages: English, Arabic, Bahasa, Brazilian, Chinese, Czech, Danish, Dutch, Finnish, French, German, Hungarian, Icelandic, Italian, Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Spanish, Ukranian, Vietnamese
Software Cost: Free
Date Updated: 28 October 2015
Watchlist: Add download to my watchlist
Downloads To Date: 17472
Developer: IObit
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IObit Smart Defrag 4.3
Defragment your hard drive in the background

Defragmenting your hard drive can make a real and significant difference to your PCs performance. So it's a pity that Windows' own defrag tool is slow, short on features and has a poor interface, especially in Vista. Fortunately there are plenty of free alternatives around, and IObit Smart Defrag is one of the best.

The program has a variety of defrag strategies, for instance. You're able to defragment files alone, defrag and compact free hard drive space, or use a "deep optimise" mode to reorganise your hard drive files for the best possible speeds. All work quickly and efficiently.

You're able to launch any of these defrag options on demand, on a schedule, or even in the background after your PC has been idle for a few minutes. We wondered if this meant the program would compromise the performance of other applications, but this really isn't the case. Smart Defrag needs less than 15MB of RAM, doesn't fire up until your system has been idle for 5 minutes, and stops as soon as other applications become active again, so it never got in our way. All you'll notice is an all-round speed boost as Smart Defrag fixes any defrag issues automatically, before they become too serious.

Smart Defrag also includes a "Boot Time Defrag" technology which allows you to defrag files during the system boot process - these are files that cannot be defragged or are not safe to move after Windows is running.

Version 4.3 is a minor update and contains the following new features and improvements:

+ Fully compatible with Windows 10
+ Optimized algorithm for more stable and faster SSD trim and HDD defrag
+ Enhanced Junk Files Clean to free up more disk space
+ Improved localization and language support
* Fixed general bug


Fast, efficient defrag tool that ensures your system is always running at its optimum performance.

Your Comments & Opinion

What a waste

Posted by: Marc Klink, 19 January 2014 14:31

They were going along, improving the product, and now someone thinks this needs to look like Windows 8.x. Also, their update background process is intrusive and not necessary - if it is going to be there, it should at least be explained that it will be installed in a directory NOT OF YOUR CHOICE.

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WhatsApp Messenger is the world's most popular instant messaging app for smartphones.

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