What is a GUID Partition Table, or GPT? In this post, we will see what a GPT partition is and how it compares to MBR disks. We will also learn how to format, remove, or delete a GPT disk or ...

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.

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.

Now with a little bit of searching I've found a Windows based tool that claims it can recover a GUID partition table called Partition Guru Professional Edition (the free version does not handle ...

MBR dates back to 1983, when DOS-based PCs first used internal hard drives. MBR cannot easily manage drives larger than 4TB or with more than four partitions (there are workarounds, of course).