The GUID Partition Table (GPT) replaces the previous master boot record (MBR). GPT partitions can hold 18 exabytes compared to 2.2TB for the MBR.

The GPT partition type, part of the Unified Extensible Firmware Interface (UEFI) initiative, is a modern disk partitioning method. Unlike the older MBR scheme, GPT offers greater flexibility and ...

Windows operating systems can have up to 128 partitions on a GPT drive without the need to build an extended partition. Another way GPT outperforms MBR is how easy it is to recover from corruption.

Note that this command works only on Intel Macs with hard disks formatted using the GPT (GUID Partition Table) format with a journaled Hierarchical File System Plus (HFS+) file system.

For added security, Windows 11 will forgo the older MBR partition scheme and use GPT instead. That may require users to convert their older hard drives. Here is how to do it.

The newer (GPT) standard solves some limitations of the older (MBR) standard. Here's how to tell which standard your drive uses.