1.    24 Jul 2016 #1
    Join Date : Dec 2015
    California, USA
    Posts : 137
    Windows 10 Pro

    utility to convert MBR disk with Windows partitions to GPT?


    Does this utility exist?

    I've tried Minitool's free version, which claims to support MBR to GPT conversion, but I got a warning that the disk would not be bootable.

    I downloaded a trial of the paid Easeus partition manager and when I tried that conversion, I got an error message telling me to contact support.

    Any suggestions, besides the one where you copy off all partitions to another drive, then do the conversion, and then copy all partitions back?

    x509
      My ComputersSystem Spec
  2.    24 Jul 2016 #2
    Join Date : Jul 2014
    San Jose, California
    Posts : 2,061
    Ubuntu14.04x64 MintMate17x64 Win10Prox64

    Can you post a screen shot of Disk Management then we'll go from there:
    Screenshot - Take in Windows 10 - Windows 10 Forums
      My ComputerSystem Spec
  3.    24 Jul 2016 #3
    Join Date : Dec 2015
    Posts : 5,470
    Windows10

    Quote Originally Posted by x509 View Post
    Does this utility exist?

    I've tried Minitool's free version, which claims to support MBR to GPT conversion, but I got a warning that the disk would not be bootable.

    I downloaded a trial of the paid Easeus partition manager and when I tried that conversion, I got an error message telling me to contact support.

    Any suggestions, besides the one where you copy off all partitions to another drive, then do the conversion, and then copy all partitions back?

    x509

    Converting drive to gpt without losing data is easy enough. Your issue is that the partitions will be set up as legacy bios, and to use gpt on OS drive, you need to convert install to uefi instead.

    It is doable but takes a little work.

    Post image of current disk partitions.
      My ComputerSystem Spec

 


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