You’ll also notice “express” and “comprehensive” defrag options. It gives you the options to do manual, automatic or scheduled defrags. The graph (as shown below) shows that it stands up head to head with the best defragmentation software out there. IOBit SmartDefrag is a free software that offers the same features and quality as Diskeeper. Smart Defrag will automatically work for you with no data lost. And you just need to install & forget it. With IObit latest disk defrag engine, it is just as safe for your files as using Windows. Smart Defrag not only provides disk defragmentation as any other tool does, but also optimizes it by intelligently streamlining your files based on using frequency.In this way, Smart Defrag 4 will boost your startup speed and enable your computer to run at top speed with the most stability. The Boot-time Defrag feature can defrag the system disk, in which some files cannot be safely moved while Windows is running, before the operating system is fully loaded.

Then you can enjoy higher game launching speed, and copy files with only half of the time as before, etc.

In order to accelerate hard drive for faster data access and outstanding disk performance, Smart Defrag 4 provides efficient defragmentation to hard drives by optimizing file placement and consolidating free space. Disk fragmentation is generally the main cause of slow and unstable computer performance.

It is known that disk fragments has been a primary cause of slow and unstable PC performance. IObit Smart Defrag helps defragment your hard drive more efficiently than any other product on the market – free or not. It not only provides defragmentation, but also intelligently streamlines your files based on using frequency, thus accelerating disk speed and the whole system for top performance! Smart Defrag 5 works fast, automatically and quietly in the background and is suitable for large hard drives. Based on IObit latest disk defrag engine and “Boot Time Disk Defrag” technology, Smart Defrag 6 is created with the world’s leading defragmentation ability. IObit Smart Defrag is a Disk Defragmenter, that accelerates the whole system with fast and efficient disk defragment.

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