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FDISK /FPRMT
Enables the use of FAT32 file system on hard drives smaller than 512 MB. Normally not allowed by default.

FDISK x /PRIs /EXT:es /LOG:ls
x = drive number (1, 2, 3... etc.). Drive #1 corresponds to the 1st hard disk installed on your machine (C, D, E... etc.).
/PRIs = creates a primary partition of size... (in megabytes).
/EXT:es = creates an extended partition of size... (in megabytes).
/LOG:ls = creates a logical drive in the extended partition of size... (in megabytes).

FDISK /MBR
Repairs a damaged boot sector by overwriting it with a fresh copy (writes a new Master Boot Record to the hard disk without altering the partition table information).
Allah Hafiz