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Sunday, March 18, 2012

Unallocated Space

Unallocated space is logical space on a hard drive that the operating system, which can write to. On the other word, it is the opposite of “allocated” space, which is where the operating system has already written files to.

If the operating system writes a file to a certain space on the hard drive that part of the drive is now “allocated”, as the file is using it the space, and no other files can be written to that section. If that file is deleted then that part of the hard drive is no longer required to be “allocated” it becomes unallocated. This means that  new files can now be re-written to that location.

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