Disk and file fragmentation

Your computer's hard disk stores all of your files, applications, and the Windows operating system. Over time, the bits of information that make up your files gradually spread over the disk. This process is known as fragmentation. The more you use your computer, the more fragmented your disks become.

When a fragmented file is accessed, the disk performance is slower. The performance is slower because the drive head locates, loads, saves, and keeps track of all of the fragments of the file. If free space is also fragmented, the drive head might have to track adequate free space to store temporary files or newly added files.

Norton optimizes your permanent disks to improve your computer's efficiency and speed. The optimization process rearranges the scattered file fragments into adjacent or contiguous clusters. When the drive head accesses all of the file data in one location, the file is read into the memory faster. Optimization also consolidates free space to avoid fragmenting newly added files. It adds extra space after major data structures so that they can grow without immediately becoming fragmented again.

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DOCID: v6958030_ns_retail_en_us
Operating System: Windows
Last modified: 06/19/2017