Yes. MBR is the boot sector we most commonly interact with. /FixMBR writes "to the system partition" is not correct. MBR is written to the first sector of the disk (even on GPT disks).
Yes. MBR is the boot sector we most commonly interact with. /FixMBR writes "to the system partition" is not correct. MBR is written to the first sector of the disk (even on GPT disks).