Different between MBR and GPT partition

In this post, we are discussing about the difference between GPT and MBR in this post. And also helping you choose the right one for your PC or Mac. Whenever you buy a new computer or hard disk drive, you have to partition that disk drive to work. Disk partition means separating a physical hard drive into multiple independent volumes so that you can store it in different segments according to your data requirements. MBR (Master Boot Record) and GPT (GUID Partition Table) are two different ways to help partitioning the information stored on the drive. There is an information about ending partitions in this information, so that your operating system learns which part of which partitions belongs and which partition is bootable.

Difference Between MBR and GPT Partition:

1. The MBR was a very old standard (introduced in 1993 with DOS) while GPT is a new standard that is gradually replacing the MBR.
2. MBR standard supports almost all new and old OS and is considered to be most compatible while GPT is still new and does not support all OS (old OS).
3. Maximum partition size of MBR is 2TB while GPT supports up to 9TB.
4. The MBR can have at most 4 primary partitions, whereas in Windows GPT, there can be 128 partitions and GPT OS is dependent otherwise it supports unlimited partition.
5. Because the MBR supports only four primary partitions, so if you want more partitions, then you have to create one of the primary partitions as "extended partition" and then you can create logical partitions on it. In GPT, Windows supports up to 128 partitions and there is no need to create an extended partition.

Converting using the Windows interface

1. Back up or move your data to convert MBR into GPT or GPT into MBR.
2. If the disk contains any partitions or volumes, right-click each and then click Delete Partition or Delete Volume.
3. Right-click on the MBR disk that you want to change into a GPT disk, and then click Convert to GPT Disk.

Using command line

Use the following steps to convert an empty MBR disk to GPT disk. There's additionally a MBR2GPT.EXE tool that you can use, but it is a bit complex.

1. Back up or move your data to convert MBR into GPT or GPT into MBR.
2. Open Command Prompt and then click Run as Administrator.
3. Type “diskpart”.
4. Type “list disk”.
5. At the DISKPART prompt, type “select disk <disk number>”. Note: Select the disk number to convert that disk. Not include <> on command prompt.
6. At the DISKPART prompt, type “clean”.
7. Type “convert mbr”.

Note: Executing the clean command will remove all partitions or volumes on the disk.

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