When you create new partitions on a basic disk, the first three will be formatted as primary partitions. Beginning with the fourth, each one will be configured as a logical drive within an extended partition.
Formatting a volume will destroy any data on the partition. Be sure to back up any data you want to save before you begin.
You cannot format a disk or partition that is currently in use, including the partition that contains Windows.
The Perform a quick format option will create a new file table, but will not fully overwrite or erase the volume. A quick format is much faster than a normal format, which fully erases any existing data on the volume.
Article ID: 17418 - Last Review: May 11, 2016 - Revision: 27