You can convert the partition style of a disk if the disk does not contain any data.
To convert the partition style of a disk
Right-click the basic disk to display the context men. Select Convert to MBR Disk, if you have a GPT disk; or select Convert to GPT Disk, if you have an MBR disk.
The convert pop-up window appears.
Read the information in the pop-up window and click Yes to confirm the conversion.
