In which some files cannot be safely moved while windows is running.The boot-time defrag feature can defrag the system disk.Exceptionally efficient defragmentation.Then you can enjoy higher game launching speed, and copy files with only half of the time as before, etc.

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.Smart Defrag 6 is also specially optimized for the file organization algorithm on Windows 10. With the improved IObit disk defrag engine, Smart Defrag 6 not only defrags your HDD but also trims your SSD to accelerate disk access speed and enhance disk durability. Being the first disk defragmenter that fully supports windows 8/8.1 metro apps, smart defrag 6 works fast, automatically and quietly in the background and is a disk defragmenter suitable for large hard drives. Smart Defrag is based on iobit latest disk defrag engine and 'Boot time disk defrag' technology, It 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. IObit Smart Defrag pro is light, and stable disk defragment tool designed for maximum hard drive performance.

Smart defrag 6 pro key