Where the boot sector files of the system are stored?

The boot sector files of a system are typically stored on the primary storage device, such as a hard disk drive (HDD) or solid-state drive (SSD). Specifically, the boot sector is located in the first sector of the storage device, which is usually referred to as the Master Boot Record (MBR) or the GUID Partition Table (GPT) for modern systems. This sector contains important information about how the operating system should be loaded and executed when the computer starts.