How can I configure a UEFI motherboard for MBR instead of GPT?

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  1. Posts : 1,030
    Linux Mint / XP / Win7 Home, Pro, Ultimate / Win8.1 / Win10
       #11

    You might also use a live Linux disk (Puppy Linux, Mint Linux, etc.) and use it to create an MBR formatted hard drive then fresh install Windows to it.

    Regards,
    GEWB
      My Computer


  2. Posts : 8
    Windows 7/8/10 UEFI/GPT system
       #12

    How to convert disk from MBR to GPT or GPT to MBR if you do not want to keep the existing partition style.

    Convert MBR to GPT:
    1. Boot from the Windows 7/8/10 USB/DVD in UEFI mode.
    2. Delete all partitions on the disk until it's unallocated.

    How can I configure a UEFI motherboard for MBR instead of GPT?-convert-disk-mbr-gpt-gpt-mbr-1.png

    Convert GPT to MBR:
    1. Boot from the Windows 7/8/10 USB/DVD in Legacy BIOS mode.
    2. Delete all partitions on the disk until it's unallocated.

    How can I configure a UEFI motherboard for MBR instead of GPT?-convert-disk-mbr-gpt-gpt-mbr-2.png

    Installing to the unallocated space and letting Windows create the partition table and partitions works with either Legacy BIOS or UEFI boot mode.

    On an MBR disk, Windows 7/8/10 setup will create a System Reserved partition and a primary Windows partition.

    On a GPT disk, Windows 7/8/10 setup will create a Recovery partition (not in Windows 7), an EFI System partition, a Microsoft Reserved partition (won't show in Disk Management), and a primary Windows partition.

    How can I configure a UEFI motherboard for MBR instead of GPT?-convert-disk-mbr-gpt-gpt-mbr-3.png
    Last edited by Nipax; 12 Jan 2016 at 06:52.
      My Computer


  3. Posts : 426
    Win7 Ultimate SP1
       #13

    Great post, Nipax, clear, succinct, makes sense.

    I'll save the page for future reference.

    Well done
      My Computer


  4. Posts : 20,583
    Win-7-Pro64bit 7-H-Prem-64bit
       #14

    Yep good post indeed but it also confirms the wipe program used did a crappy job at wiping the disk :/
    If the bios is set to uefi only though could indeed be the issue.
      My Computer


  5. Posts : 6
    W7 64-bit
    Thread Starter
       #15

    Thank you, Nipax, I think your information has answered my question.

    And thank you everyone else who made POSITIVE contributions

    Happy Hogmanay!
      My Computer


 
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