Definition of "defragmentation" [defragmentation]

• The action of defragmenting, particularly with respect to a computer disk or drive. (noun)

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• "With UltraDefrag you can defragment your entire disk, defragment based on the file and folder — handy if your disk defragmentation is limited to a handful of frequently edited and altered files — and set it up to defragment during the boot process to access files Windows usually has locked."
• "I will run the program manually once in a while to check my disks and try to determine if the auto defragmentation is doing a good job, if is is, it will be one less thing that I will need to remember to do."
• "Boot time defragmentation, which is designed to reduce startup time by optimizing boot files, worked well."