MBR vs GPT: Which One Is Better for You?

MBR vs GPT, which one is better? What’s the difference between them? How to convert between them? This article will tell you about them.

December 24, 2014

MBR vs GPT: Which One Is Better for You?


For most computer users, I think they will come across the terms “MBR” and “GPT” more or less. If a computer user have dabbled with his/her hard disk and often format or partition, I think he/she will know more about “MBR” and “GPT”.

GPT is the abbreviation of GUID Partition Table, which is a standard for the layout of the partition table on a physical hard disk, using globally unique identifiers(GUID). MBR is another kind of partition table formats. MBR stands for master boot record.

MBR is old, GPT is new. But the new is not always better than the old. There are still many vendors utilize the MBR technology since it is still predominantly used in the real world. GPT disks have advantages of partition size, number of partitions, and resilience. If a computer that uses UEFI, it will only support GPT. So when you upgrade your computer, it may be necessary to convert MBR to GPT at first.

Compared with MBR disk, a GPT disk supports larger than 2 TB volumes while MBR cannot. A MBR disk can be basic or dynamic, just like an GPT disk can be basic or dynamic. GPT disk also supports up to 128 partitions rather than the 4 primary partitions limited to MBR. Also, GPT keeps a backup of the partition table at the end of the disk. Furthermore, GPT disk provides greater reliability due to replication and cyclical redundancy check (CRC) protection of the partition table. The GPT disk partitioning style supports volumes up to 18 exabytes in size and up to 128 partitions per disk, compared to the MBR disk partitioning style, which supports volumes up to 2 terabytes in size and up to 4 primary partitions per disk (or three primary partitions, one extended partition, and unlimited logical drives). Unlike MBR partitioned disks, data critical to platform operation is located in partitions instead of unpartitioned or hidden sectors. In addition, GPT partitioned disks have redundant primary and backup partition tables for improved partition data structure integrity.

For more information about the differences between GPT disk and MBR disk, please go to:http://www.disk-partition.com/gpt-mbr/difference-between-mbr-and-gpt-1203.html

Usually, MBR and BIOS (MBR + BIOS), and GPT and UEFI (GPT + UEFI) go hand in hand. This is compulsory for some systems (eg. Windows), while optional for others (eg. Linux).If a Windows computer that uses UEFI, it will only support GPT. So when you upgrade your computer, it may be necessary to convert MBR to GPT at first.

Above tells you about MBR vs GPT. Now that GPT has so many advantages, why not convert MBR to GPT? Next I’d like to tell you a good way to convert MBR to GPT. That is with AOMEI Partition Assistant.

Download AOMEI Partition Assistant Professional Edition from its office website. Install and run. We can see the MBR disk from the home screen. Converting MBR disk to GPT disk won’t cause data loss, details are here.

Select disk


However, there are some situations need convert GPT to MBR. One is like the problem - “the Selected Disk is of the GPT Partition Style” when people install Windows system. People can also convert GPT to MBR disk by the aid of AOMEI Partition Assistant Professional Edition.

Converting option


To avoid repetition, it’s not described in this article. Please visit:http://www.disk-partition.com/help/convert-gpt-mbr-disk.html

Before know the result of MBR vs GPT, you may be fine with either MBR or GPT. Oh, another typical situation I’ve forgotten is that when you need to have a partition bigger than 2TB, you need to use GPT, or convert MBR to GPT.

In any event, with the help of AOMEI Partition Assistant, anything will be easier. It can be a great partition converter, not only between MBR and GPT, but also FAT and NTFS, primary partition and logic partition. It can even rebuild MBR.