Converting W10 System Disk from MBR to GPt


  1. JJG10
    Posts : 548
    Windows 10 Build 1809
       New #1

    Converting W10 System Disk from MBR to GPt


    For some reason my W10 System Disk (SSD) is set up as an MBR Disk. My separate Data disk (HDD) is GPT. I know how to convert the System Disk to GPT using Minitools Partition Wizard. If I do that to the SSD will I loose the W10 installation? And is there any advantage to doing that conversion?

    Thank you.
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  3. Brink
    Posts : 68,881
    64-bit Windows 11 Pro for Workstations
       New #2

    Hello JJ, :)

    If you Windows disk doesn't have more than 3 partitions on it, then you could use the method in the tutorial below to convert your Windows 10 installation from legacy BIOS to UEFI without data loss.

    Convert Windows 10 from Legacy BIOS to UEFI without Data Loss Windows 10 Installation Upgrade Tutorials
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  4. JJG10
    Posts : 548
    Windows 10 Build 1809
    Thread Starter
       New #3

    Thank you very much Brink. That worked like a charm.
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  6. Brink
    Posts : 68,881
    64-bit Windows 11 Pro for Workstations
       New #4

    You're most welcome. :)
      My Computers
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