When referring to MBR and GPT, you should know they are two different partition types on disk. MBR is also called Master Boot Record, which refers to the boot sector in the beginning of a drive. GPT is short for GUID Partition Table. There are some differences between them in three aspects.
MBR only supports a maximum 2TB disk, but GPT can support a disk size up to 18EB. Besides, MBR only allows you to create at most four primary partitions, or three primary partitions plus one extended partition which can be further divided into more logical partitions. Whereas GPT allows creating up to 128 partitions in a disk.
Furthermore, there is an important point you need to know:
GPT has an outstanding merit that the partition table has a built-in backup, and GPT is able to store multiple data copies in operating system. If data is damaged, GPT can recover data and system can work again. In contrast, MBR can’t support this feature.
Therefore, after knowing those differences, you can know what GPT advantages are and why you need to convert your disk from MBR to GPT. But is there any way to achieve this goal, using diskpart or other tool? Please read on the following paragraphs.
Diskpart is a built-in tool in Windows which can help you manage partitions and do the conversion between MBR disk and GPT disk. When searching “diskpart convert MBR to GPT” in Google, you can find the detailed steps:
1. Right click “Start Menu” and type “diskpart” to open a command prompt, and then you can start to convert MBR to GPT.
2. Then type “list disk”.
3. Type “select disk n”.(“n” represents the disk number.)You can select the disk you want to convert.
4. Type “clean” to delete all volumes or partitions on the target disk.
5. Type “convert GPT”. After press “Enter” button in Disk Management, you can see your disk has been converted to GPT format successfully.
Even though “convert MBR to GPT diskpart” command can help you to change MBR to GPT, all your partition data is lost by cleaning volume. You must backup your partition data before deleting all partitions. Therefore, it is not recommended to convert MBR disk to GPT disk with diskpart. You should find a reliable way to achieve your aim.
To convert to GPT disk, here is a free and professional software to recommend to you – MiniTool Partition Wizard Free Edition. It is your wise choice, because it makes up for the deficiency of diskpart. With the help of this freeware, you can convert your MBR disk to GPT disk without deleting your partitions. Just do as the guidance:
Step 1: Download MiniTool Partition Wizard Free Edition and launch it to its main interface.
Step 2: Then you need to select a disk which you want to change to GPT. Right click this disk and select “Convert MBR Disk to GPT Disk”.
Step 3: Next click “Apply” to perform the operation. In the following screenshot, you can preview the disk will become GPT disk.
Just in only three steps, you can change MBR to GPT without deleting partitions quickly and effectively with MiniTool Partition Wizard. Try this freeware instead of “convert MBR to GPT diskpart” command.