IObit Smart Defrag is a Free Disk Defragmenter, that is used to speed up the entire system with quick disk defragment. Smart Defrag 6 is one of the best defrag designs with a great driving defragmentation capacity. It gives defragmentation, yet in addition cleverly smoothes out your records dependent on using recurrence, in this way speeding up disk speed and the entire system for good performance, Smart Defrag 6 works quick, consequently at the backend, and is reasonable for huge hard drives. The software can defragment your hard drive more efficiently than all the other software available.