beskyttende hovedoppstartspost(The first sector of a GUID partition table (GPT) disk that is structured like the first sector of a master boot record (MBR) disk to prevent x86-based disk utilities from destroying GPT partitions. The Protective MBR contains one partition that reserves the entire space used on the disk by GPT partitions)
protective measure Any precautionary action, procedure or installation conceived or undertaken to guard or defend from harm persons, property or the environment