In Bios: Format Drive

: You will see a list of partitions. Select the drive you want to clear and click Format or Delete .

The Basic Input/Output System (BIOS) is firmware embedded on a computer’s motherboard, responsible for hardware initialization and booting an operating system (OS). A common misconception among users is that the BIOS provides a direct utility to "format" a hard drive (e.g., erase data and create a file system like NTFS or FAT32). Instead, the BIOS facilitates low-level drive detection and boot order changes, which enable external formatting tools to operate. This report clarifies what the BIOS can and cannot do, the correct methods for drive formatting, and critical safety considerations. format drive in bios

For more control, you can use the Command Prompt hidden inside the Windows recovery environment. How to convert Hard Disk to UEFI Hard Disk : You will see a list of partitions