Defragging is the process of reorganizing data on a disk so that files are stored contiguously, improving read/write efficiency. In computing, the term typically refers to running a defragmentation utility on magnetic or solid‑state drives to optimize performance. It is used as a verb in contexts describing the action of performing this optimization. Note: Modern SSDs often do not require traditional defragging, though some utilities may still offer it for maintenance or compatibility reasons.
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