So when a new file is added it will be put in the nearest free space. On a new hard drive that has nothing on it the usage of the space is continuous, but when a file is deleted it leaves a gap that is allocated to the free capacity but isn’t moved to the empty space. Windows uses files systems that are designed to minimize the movement of the write head, this is due to the fact that drives used to be a lot slower so fragmentation was a by-product of trying to get faster results.įiles are not necessarily written in individual blocks on the drive, sometimes they need to be broken up into smaller blocks and spread about the disk in the available spaces.
Hard Drive “ Optimization” and “ Defragmentation” refer to the same process.
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