Hard disks store information on your computer, including Windows, your programs, and your personal files.
Managing a hard disk is different from managing the files and folders that are stored on it. Managing a hard disk involves changing the hard disk itself, such as formatting or repartitioning it. For information about managing files, see Working with files and folders and Change the properties for a file.
Formatting disks and drives: frequently asked questions
Can I repartition my hard disk?
Create and format a hard disk partition
Delete a hard disk partition
Convert a hard disk or partition to NTFS format
Convert a hard disk or partition to FAT32 format
Create a boot partition