MBR Vs GPT- which one is more robust and reliable?

MBR Vs GPT- which one is more robust and reliable?

You have heard about disk style, there is a huge difference between MBR (Master Boot Record) and GPT (GUID Partition Table) disk. Basically, MBR and GPT help hard disk to maintain the disk partition for the storage. This article is related to MBR Vs GPT and also help users to know the difference between MBR and GPT also which one is more robust and reliable. Whenever a new window is installed in a system, then it asks for the mode of disk partition: MBR or GPT.

Introduction of MBR and GPT

As most of you know, the partition of the disk depends upon Windows Operating System for storing the data. In MBR, Windows Operating System automatically separates a primary partition to store data and divide the remaining space into an extended partition. MBR uses ROM-BOIS(Basic input-output system) partition table in its system architecture. It contains the boot sector located at the beginning of MBR disk. Also, this contains bootloader for the installed Windows Operating System as well as gives information for the extended partitions.

System Architecture of MBR

GPT using Globally Unique Identifiers(GUID), which run on Windows Operating System with UEFI(Unified Extensible Firmware Interface).GPT replaces MBR completely, due to its complete different architecture and advanced features. It contains the boot sector located at both ends of the GPT disk.

System Architecture of GPT

MBR Vs GPT: Basic Difference

For current versions of Windows Operating System, GPT is preferred. Due to its advanced features. As compared to MBR, this is more compatible. MBR Vs GPT features are discussed below.

Difference Between MBR and GPT: –


Features MBR(Master Boot Record) GPT(GUID Partition Table)
System Architecture It supports ROM-BIOS(Basic Input-Output System). It supports UEFI(Unified Extensible Firmware Interface)
Maximum Size It allows 2.2TB of partition size. It has no such limit for Partition, can be extended to 2^64 logical blocks in length, and logical blocks could be 512 bytes or 4K in size.
Partition It is limited to 4 partitions, which includes 3 primary and 1 extended partition whereas, this extended partition contains 16 logical partitions.

The limit for GPT depends upon operating system whereas, Windows allows up-to 128 partitions in GPT. It explicit the need for creating an extended partition.


It is in 24-bit CHS or 32-bit LBA(Logical Block addressing) partition addressing mode.

It is only in 64bit-LBA partition addressing mode.

Data Redundancy

In MBR, no backup formed to retrieve data. Any data redundancy cannot be altered.

In this, it is automatically repaired through CRC(Cyclic Redundancy Check).

Versions support

All the operating system versions support MBR.

All versions of operating systems support GPT, like Windows 7, Windows 8, Windows 10, Windows Server 2008, Windows Server 2012, and Windows Server 2016, but their 64 -bit versions should allow booting from GPT disk when UEFI mode is enabled.

More robust and reliable? MBR Vs GPT.

As compare to MBR Vs GPT, GPT has enormous advantages. Not only home-based systems such as desktop but also servers with bigger disk volumes used by GPT whereas MBR only suitable for desktops. Difference between MBR and GPT depend upon storage space, security, operating system, GPT has the upper hand in comparison to MBR. MBR store data in only one place which can be overwritten or corrupted then, it will be difficult to recover the data. But GPT stores multiple copies of its data, which makes it more robust and reliable.

Conversion into MBR to GPT or Vice Versa?

MBR Vs GPT, GPT is more convenient to run on the system. So, most of the people would like to switch to GPT. As discussed above, GPT overcomes the limitations of MBR, which is the common cause for the conversion. There are some methods for conversion such as using disk management, command prompt, assured solution. In order to move from MBR to GPT or vice versa, users need to take care of following things before conversion.

Things to Remember:

  • Data should not be lost while conversion.
  • Do not try to install a new Operating System if there is an existing Operating System, it will show an error.
  • For GPT, UEFI (Unified Extensible Firmware Interface) should be installed in the system.
  • Do not forget to take backup of the data.

User-related queries:

1. I am using MBR for a long time, and I really need to extend the partition in the MBR disk. What should I need to do?
2. I am having a huge amount of data in my system and my windows are not allowing me to save more data, due to the 2Tb size of my hard drive. How can I save my data?


This recapitulates the new versions of OS will use GPT because of its compatible nature. Also, a wide range of users are shifting to GPT. As its an hour of need. In fact, most of the users are using a mixture of MBR and GPT on the system which supports GPT. But UEFI requires the boot partition which supports the only GPT in their system. Also, this can be said the major difference between MBR and GPT. This MBR Vs GPT article will resolve above-mentioned queries.

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