Low-level format
The low-level format defines the geometry of the platters on our hard disk, in other words, the cylinder track sectors. In the past, when FAT 16 was used, when Windows 95 was introduced, you had to set the Low-level format manually.
High-level format
The high-level format defines the file systems to be stored, creates a master boot record, and creates a file allocation table. Only after this high-level format can the files be saved. So let’s see what that file system, FAT 16 FAT 32 NTFS, means.