Partitioning refers to dividing the entire hard disk storage space into several usable areas. Once a disk is divided into partitions, directories and files may be stored on them. Because of later changes on the computer and operating system, often an administrator or power user will be faced with the need to resize partitions, create new partitions in the unallocated space, and sometimes even undelete partitions that were previously removed or deleted.

Here is the way to do the partitioning, in windows 7.

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