What is MBR and GPT? MBR (Master Boot Record) and GPT (GUID Partition Table) are two common partitioning systems used to manage and store data on hard drives. MBR is an older system, commonly used for drives with up to 2TB of storage. GPT was developed in order to support larger hard drive capacities. It … Continue reading MBR to GPT Conversion: Is it Possible Without Formatting? Exploring Your Options