I recommend you read The Right Order section before continuing
Knowledge is power
DOS and Windows come with a disk partitioning program called FDISK. The executable fdisk.exe, can be found in the DOS or Windows\command directories. This should be copied to your boot floppy diskette. Consult the Boot Disks and Device Drivers sections regarding boot floppy preparation.
Before using this simple yet powerful utility, it's important to understand the theory behind disk partitioning and a plan of what configuration will be required. Before commencing, read the Partition Theory section. It is also necessary to know which file system will be used as the Win9.x version of FDISK will 'flag' a partition to be formatted using FAT32 if 'Large Disk Access' is selected. Read the Disk Formatting section before commencing with partitioning.
- Boot computer using booty floppy diskette and run fdisk.exe from a:\
Win98 version of FDISK flags partition for later automatic FAT32 formatting if large disk support is selected:
The fdisk screen with numbered options. option  only appears if there are more than one physical hard disks present. Note option  Create DOS partition is selected:
Option  brings up secondary menu. Choice  Create Primary DOS Partition
Select [Y] to create a single primary partition. Select [N] to make smaller
Enter size of primary partition in megabytes:
Primary partition creation summary screen:
Pressing escape returns you to first menu. Select  to Create Extended
no more primary partitions will be created, the menu allocates the rest of the disk space to the extended partition. Pressing enter confirms this default allocation:
Primary and extended partition creation summary screen:
Extended partition must contain at least one logical drive, and menu defaults to a single logical drive filling the entire extended partition. Enter alternative size (here selected 1040MB) for more than one logical drive:
Menu confirms one logical drive of 1043MB, known as D: drive has been created and awaits further input. Here the remaining space in the extended partition is filled with a second logical drive:
Menu confirms two logical drives (D: and E:) now occupy the whole of the extended partition:
Pressing escape returns to first menu. Select  for complete summary
First summary confirms size of primary and extended partitions.
Select [Y] to see logical drive summary:
Second summary screen displays size and drive letter allocation of logical drives:
As can be seen, the FDISK menu is structured in a strict linear pattern. Primary partition creation is followed by extended partition creation and finally any logical drives. Give me Partition Magic any day..