How to convert GPT to MBR disk and MBR to GPT

Why convert MBR disk to GPT disk?

• MBR hard disk can only support disk size up to 2TB.
• MBR disk only support 4 Primary partitions at most, or 3 primary partitions plus an extended partition.
• Subject to drive letter assign rule, after "Z" has been assigned, new partitions won't be shown.

After converting MBR disk to GPT, there will be no such limitations.

Nowadays, hardware prices are much cheaper, you can easily create very large storage with TBs disk and RAID controller. To use the virtual disk and partitions that is larger than 2TB, you must convert the disk from MBR to GPT, otherwise, the rest disk space will be wasted.

Why convert GPT disk to MBR disk?

Windows 95/98/ME, Windows NT4, Windows 2000, Windows 2003 32-bit, Windows XP 32-bit version does not support GPT partitions, so you cannot access the data until you convert them back to MBR disk.

While all Windows can boot from a MBR disk, you can only boot from a GPT disk if you have a operating system that supports GPT and your motherboard has a EFI BIOS and is enabled.

Okay, no matter you want to convert MBR to GPT disk or convert GPT to MBR, Partition Magic Server software is able to convert between MBR and GPT without losing data.

How to convert MBR disk to GPT?

Download, install and launch Partition Assistant, right click the MBR disk you want to convert and then select "Convert to GPT Disk".

Press "Apply" button on top left toolbar to proceed.

Converting GPT disk to MBR is similar.

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