What is Disk Fragmentation on Windows and how does it optimize your hard disk?
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File fragmentation occurs when new data is written into spaces freed by deleting other files. If the new file is bigger than the chosen free section, it must be split into more fragments and writen onto other spots. This slows down access to the data because the reading head must jump around.
Defragmentation rearranges data on a disk to be as contiguous as possible. This means that all files neatly follow one another alphabetically.
The rate of fragmentation depends on how often files get replaced.
In more modern solid state flash memory conventional defragmentation doesn’t work because the actual layout of the data is managed by the device internally and is invisible to the operating system.
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