How to Convert MBR to GPT Disk with AOMEI Partition Assistant

Convert MBR to GPT with "diskpart.exe"

1. 
   Click "Start", and input "diskpart" in the searching box.
2. 
   Input "list disk", and then select the disk you want to convert by typing "select disk x".
3. 
   Input "list partition" (this step will delete all files in your hard disk!)and then select the existing partitions and delete all of them by typing "delete partition x" command.
4. 
   Input "convert gpt".