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There is always a lot of confusion about partitions and partition numbers. So let us try to shed some light: There are three types of partitions: Primary Partitions  Extended Partitions  Logical Partitions  Primary and extended partitions are the main disk divisions; one hard disk may contain up to four primary partitions, or three primary partitions and one extended partition. The extended partition can then be further divided into any number of logical partitions. The illustration below shows a hard disk that contains four main partitions: three primary partitions and one extended partition. The extended partition has been further divided into two logical partitions. Each primary partition has been formatted to use a different file system (FAT and NTFS). The two logical partitions have both been formatted to use the FAT file system.   Primary Partitions A primary partition may contain an operating system along with any number of data file...