What is the use of disk defragmenter? -Technology

What is the use of disk defragmenter? -Technology
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Answer :

It can detect computer files, whose contents are broken across several locations on the hard disk and move these fragments in a particular location to increase storage efficiency. You can use disk defragmenter to rearrange files and unused space of your hard disk, so that programs run fast, e.g. MyDefrag, PerfectDisk, Diskeeper, Defraggler etc.You can start Disk Defragmentation process as follows:Click Start —> All Programs —> Accessories —> System Tools —> Disk Defragmenter.
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