Defragment
When a file is stored on your
computer, it is distributed across the memory, i.e it is fragmented. To access
that file, the reading head of hard drive has to skip many locations to fully
read its contents. Because the data is spread across the entire disk, the hard
disk seek time is increased and it can reduce your computer’s performance.
Defragmentation is the process to compile those fragments and store them in
contiguous memory locations from start to finish. If you hear more than the
usual amount of sputtering noises from your hard disk, in all likelihood it's
extremely fragmented and it's time to run defragmentation. Windows comes
bundled with a defragmentation program or a commercial disk utility such as
Norton Utilities can also be used. Mac users can use DiskWarrior or Tech Tool
Pro. Its good practice to defragment your hard disk once a month. Of course
defragmentation doesn't apply to SSDs and in fact doing so will reduce their
life.
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