By Michael / Last Updated June 22, 2021

GPT (GUID Partition Table) is a new style of partitioning on a physical hard disk, which invented after MBR (Master Boot Record) many years later. So it has many advantages which are difficult or even impossible for MBR disk.

Two obvious merits of GPT Disk is that it supports up to 128 primary partitions. Compared with MBR disk, which can only support up to four primary partitions and an additional 124 partitions inside extended partitions. A GPT disk allows a much larger partition size bigger than 2TB, which is the limitation for MBR disks.


Windows can only boot from a GPT disk if the motherboard support UEFI (Unified Extensible Firmware Interface).

Now I will recommend you a partition magic software for GPT disk. The partition magic software named AOMEI Partition Assistant. Developed by AOMEI Tech Co., Ltd., which is a professional partition tool. As it is called, is a good assistant of GPT disk partition. With this partition magic software, you can optimize GPT disk easily and safely. Let me give just a few examples:

1. Resize GPT Partition

Resize partition means to make a partition bigger or smaller than before. Thus you can organize your files and data better. The following is a quick explanation of how to resize GPT partition with AOMEI Partition Assistant Pro.

Select the partition you want to resize, right click and select “Resize Partition”.

Resize Partition

Drag the border leftwards to shrink partition. Click “OK”.


Back to the main screen, click “Apply”and “Proceed”. Thus, the partition would be perfectly resized without data loss.


2. Migrate OS to GPT Disk

You can use AOMEI Partition Assistant to migrate Windows OS to a new GPT disk.

Click “Migrate OS to SSD or HDD” on the wizards panel. Click “Next” in the pop-up window.

Migrate OS to SSD or HDD

Select disk space and click “Next”.

Select Disk Space

Specify the size or the location of the partition being created.

Resize Partition

Read the note and click “Finish”.


“Apply”. Thus, the operating system would be successfully migrated by this partition magic tool.


3. Convert GPT to MBR Disk

This partition magic software is also able to convert GPT to MBR disk.

Select the GPT disk you want to convert, right click and click “Convert to MBR Disk”.

Convert to MBR

Click “OK” in the pop-up window.


Click “Apply” to execute pending operations please.

From the above three examples we can see that AOMEI Partition Assistant, as a partition magic software, has both main capabilities and advanced capabilities, is one of the rarely partition magic tool in the computer software markets.