Smart Defrag 5 is light, and stable disk defragment tool designed for maximum hard drive performance.
Based on IObit latest disk defrag engine and "Boot Time Disk Defrag" technology, Smart Defrag 5 not only provides defragmentation,
like any typical disk defragmenter can do, but also intelligently streamlines your files based on using frequency, thus accelerating disk speed for faster data access!
With the unique Deep Analyze technology, it smartly clean junk files before defragmentation to save more disk space for you.
Being the first Disk Defragmenter that fully supports Windows 8/8.1 Metro Apps, Smart Defrag 5 works fast, automatically and quietly in the background and is a disk defragmenter suitable for large hard drives. + New Defrag Engine supports multithreading for ultra-fast, stable, and efficient defrag.
+ New Smart Defrag/Optimize Technology to intelligently apply the most suitable defrag/optimize method for different disks to reach top performance.
+ Added Defragment Specified Files under Boot Time Defrag for more thorough and effective defragmentation.
+ Added Large File Defrag supports defragmenting large files to accelerate disk read/write speed and enhance disk durability.
+ Added Free Space Defrag maximizes the disk read/write performance by consolidating the free space for large contiguous block.
+ Added Silent Mode to intelligently adjust defragmentation priority according to user preference and disk status.
+ Supported Scheduled Task to defrag disks automatically when PC is idle.
+ Added Auto Update to always keep your Smart Defrag up-to-date.
+ Added new Readable skin and more intuitive interface for easier use.
+ Supported more than 30 languages.
* And more can be discovered.

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