For detailed instructions, follow the steps listed below. Disclaimer* You will need to buy a copy of AOMEI Partition Assistant Professional Edition as the Windows Disk management. Again, right-click on the disk and select the “Convert to GPT” disk feature. select the disk to convert > right click the mbr disk and choose 'convert to gpt' > click 'apply' to commit the changes. Covert to GPT option greyed out Steps of changing MBR to GPT. If you wish to recover the data before the conversion, I would suggest you to follow the steps mentioned below. Convert mbr to gpt windows 10 without data loss Other limitations are that MBR only supports a maximum of 4 primary partitions.
