To remove an MBR partition-style disk, you need to convert it to a GUID Partition Table disk that uses UEFI. For this purpose, you can use DISKPART command-line utility, Disk Management, or a ...

For example, the maximum partition size of an MBR disk that's formatted with a 512-byte unit allocation size is a measly 2 TB compared to the 9.3 ZB (over 9 billion TB) that GPT disks allow.

A GPT partition (GUID Partition Table) is superior to an MBR partition because it allows for 128 partitions and supports partitions much larger than 2 TB (with each partition supporting up to 18.8 ...

However, Microsoft offers MBR2GPT.EXE that can convert a disk from the Master Boot Record (MBR) to the GUID Partition Table (GPT) partition style without modifying or deleting data on the disk.

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.