The good news is that the three formatting processes leave most-if not all-data on the hard drive intact, making complete data recovery easily possible. During low-level formatting, the surface of the hard drive is marked to indicate the start of recording blocks. The way a hard drive is partitioned is completely in the hands of the user, but the same can’t be said about the first formatting process, called low-level formatting, because it usually happens in the factory. The information about individual partitions is stored in a special region on the hard drive, called the partition table. The disk partition is created prior to high-level formatting, during a process called partitioning, which divides the hard drive into one or more regions, called partitions, indicating where each partition starts and where it ends.
This type of formatting is actually the last of three different processes that make a hard drive usable by the operating system and applications, and its purpose is to create a file system within a disk partition. When most people hear the term hard drive formatting, they immediately think of a process experts call high-level formatting. While you don’t have to understand the ins and outs of the hard drive formatting process, knowing what has happened to your hard drive can help you successfully recover data from it.
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