What does
Smart Defrag 4 do?
Smart Defrag 4, a FREE, light, and stable disk defragment tool designed for maximum hard drive performance, introduces Boot Time Disk Defrag to get up to 100% faster PC startup by intelligently streamlining your files based on using frequency, thus accelerating disk speed for faster data access! The newly added SSD Defrag will significantly improve the access speed of SSDs and expand its useful life. With Game Defrag, users can also manually add the games to the Smart Defrag 4 to be defragged separately from the complete storage drive defrag, for top gaming performance. Being the first Disk Defragmenter that fully supports Windows 8/8.1 Metro Apps, Smart Defrag 4 works fast, automatically and quietly in the background and it is a disk defragmenter suitable for large hard drives.

Media Review

"IObit Smart Defrag 4 is the best defragger we've tried yet."

"IObit Smart Defrag 4 optimizes your PC to take full advantage of SSD performance while defragmenting your hard disks. Its SSD Trim tool automatically enables system tweaks that typically require experience to apply. Smart Defrag 4's updates include a new defrag engine, specialized Game Defrag, a cool new look, and many more language options (35 and counting)."
- CNET
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User Review

"Smart defrag is a very well behaved disk defrag software."


Amnon
2012
"Smart defrag is a very well behaved disk defrag software, operating in the background whenever computer is idle so that you hardly notice it. As a result: drives are permanently defragmented allowing rapid access and less wear and tear. Smart defrag is the best Free disk defragmenter I've ever used and I'll definitely recommend it to my family and friends!"

Awards

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