プロテクティブMBRMeanings1nounprotective MBRcomputingComputing term: a protected Master Boot Record, often used in disk partitioning and boot security contexts.GPTディスクでは、プロテクティブMBRが先せん頭とうセクタに配はい置ちされる。On a GPT disk, a protective MBR is placed in the first sector.