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"Best Free Disk Defrag Software - Smart Defrag by IObit"
Smart Defrag is a free tool from IOBit that enables a faster (and smarter, as is evident from the name) defragmentation of the user’s hard disk to enable a smoother PC experience, and iron out inconsistencies in the computer’s performance.
Windows has a built-in defragmentation tool, but Smart Defrag works faster and more efficiently than this integrated tool, as it performs the same function at about a fraction of the time than Windows does, and is safer; usually, when Windows uses a defrag function, the system may lock up, or the read/write process may not complete fully when the user does something (especially ones that are disk-intensive) when a defrag is happening.
Smart Defrag bypasses all these problems with its exclusive technologies, which makes defragmenting – especially a pain for huge hard disks, like 1 TB and up – still a breeze with its patented Boot Time Defrag technology. This enables the application to defragment the files on your hard disk during the boot-up process, allowing you to enjoy the maximum benefits of your computer when you need it. It also features a background defrag system that continually defragments your PC, plus a disk optimization technology that not only defragments your disk, but also cleans and streamlines it.