DEFRAGMENTION

Defragmentation is the process of locating the noncontiguous fragments of data into which a computer file may be divided as it is stored on a hard disk, and rearranging the fragments and restoring them into fewer fragments or into the whole file. Defragmentation reduces data access time and allows storage to be used more efficiently. 



Why does Windows need defragmentation?

Windows operative system is not capable of autodefraging, which means it doesn't put together the separated blocks and gaps in the hard drive automatically. That is the reason why we need to do it ourselves