Partitioning discs
A partitioned disk is not used by the operating system,therefore partitioning is an essential.
Partitioning a disk is divided into many parts, but simply define the space in it usable for details on how and why the partitioning.
I remember that the cancellation of an existing partition will lose the visibility of data, but these remain on the disc and are recoverable, less than overwrite the disk or subsequent installations already made.
Depending on the operating system that you have the procedures change, so you must make some distinctions between different operating systems
The transactions described however are not interchangeable and "exclusive", ie that these operations, related to simple partitioning are used indiscriminately before the operating system (or even to create a disc without SO) without restrictions or limitations on facilities later
In practice the partition created using an operating system is valid and recognized by other operating systems
NOTE: This article discusses non-commercial or freeware programs that perform partitioning, but partitioning with the tools inherent in operating systems.
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