Here are some key features of "SmartDefrag":

Extremely Easy to Use:
· Install it and forget it. This powerful, free utility works continuously, automatically and quietly in the background on your PC. Its intuitive interface makes IObit SmartDefrag the ideal utility for complete computer dummies.

Exceptionally Efficient Defragmentation:
· IObit SmartDefrag has the world's fastest defragmenting engine. It's been specially designed for modern, large hard drives, so it eliminates long waiting times.

Optimize Your File System:
· IObit SmartDefrag doesn't just use simple defragmentation. It also streamlines your file system, enabling your computer to run at top speed with the most stability.

Always-on to Work Automatically:
· IObit SmartDefrag works automatically and quietly in the background, so it continually and constantly keeps your computer fragment-free.

Data Safe and Reliability Guaranteed:
· Besides, unlike other "Automated" Defragmenters, Smart Defrag does NOT constantly perform analysis and defrag, which does damage your hard drive and shorten its life. Smart Defrag has a "Safe Intelligence" technology that can assure the health of your disk by deciding When and How to execute defragmentation.

Homepage - http://www.iobit.com/