Windows 10 install on dual boot 2 drive Windows-Ubuntu setup


  1. Posts : 2
    Windows10
       #1

    Windows 10 install on dual boot 2 drive Windows-Ubuntu setup


    I really need some help getting my dual boot Ubuntu - Windows 10 setup working properly.

    The issue is a partially corrupted Windows install do to a recent aborted format operation.

    I originally partitioned and set up my dual boot over 2 years ago and didn't keep detailed notes.


    I can boot into Ubuntu without issue. I normally switch between the 2 OS's by booting into UEFI and selecting the correct drive.

    So 2 separate physical drives.

    A Samsung 850 EVO 1TB drive is my primary boot drive (Drive 0) that I have partitioned for Ubuntu as follows.


    dev/sdb1 esp fat32 10MiB
    dev/sdb2 root ext4 40GiB
    dev/sdb3 home ext4 650 GiB
    dev/sdb4 swap linuxswap 128GiB
    unallocated 123 GiB



    The drive which should contain my Windows install is a Samsung 950 PRO 512 GB nvme (Drive 1 in the attached image)


    I have created a Windows 10 install USB and launched into it.
    The problem I am having is that when I select either of the primary partitions on Drive 1 the installer says that it cannot install because of the GPT partitioning scheme on that drive.
    I am confused. What do I have to do to reinstall Windows in that drive ?
    Attached Thumbnails Attached Thumbnails Windows 10 install on dual boot 2 drive Windows-Ubuntu setup-windows_partition.jpg  
      My Computer

  2. FreeBooter's Avatar
    Posts : 4,019
    Windows 10 Pro 64-bit
       #2

    Error message means your computer is set up to boot in legacy BIOS mode, but the hard drive where you attempt to install Windows is partitioned as GPT style. In Legacy BIOS, you can install operating system on a MBR disk only, as the legacy BIOS does not support modern GPT partition style.
      My Computer


  3. Posts : 2
    Windows10
    Thread Starter
       #3

    FreeBooter said:
    Error message means your computer is set up to boot in legacy BIOS mode, but the hard drive where you attempt to install Windows is partitioned as GPT style. In Legacy BIOS, you can install operating system on a MBR disk only, as the legacy BIOS does not support modern GPT partition style.
    Thanks for the feedback!
    Since I am booting from an external USB, I'm confused how I might force using UEFI instead of BIOS?
    Or is the issue simply that I have configured my USB incorrectly?
      My Computer

  4. FreeBooter's Avatar
    Posts : 4,019
    Windows 10 Pro 64-bit
       #4

    You will have to set your BIOS to UEFI.

    Disable Legacy Boot Mode and Enable UEFI
      My Computer


 

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