Learn how to convert MBR to GPT disk without data loss in Windows 11/10, using Diskpart, Gptgen, or AOMEI Partition Assistant. MBR disks support only 4 partition tables.

The selected disk is of the GPT partition style When installing Windows on UEFI-based PCs using Windows Setup, your hard drive partition style must be set up to support either UEFI mode or legacy ...