Repair Install: PC=2004 MCT=20H2. Fails.Have new MB & CPU. Complicated

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  1. Posts : 97
    Windows 10 Pro 64-bit
    Thread Starter
       #11

    Ok.
    I used CloneZilla to clone the boot drive (for safety) because it doesn't use Windows.

    The BIOS has an either/or choice, makes life easier.

    - - - Updated - - -

    Conversion failed. Cannot create the EFI partition. The HDD has 266GB unused.
    Busy running surface test on unused area.
      My Computer


  2. Posts : 3,959
    Windows 7 HP 64 - Windows 10 Pro - Lubuntu
       #12

    macnab said:
    Ok.
    I used CloneZilla to clone the boot drive (for safety) because it doesn't use Windows.

    The BIOS has an either/or choice, makes life easier.

    - - - Updated - - -

    Conversion failed. Cannot create the EFI partition. The HDD has 266GB unused.
    Did you read and understand the tutorial?
    Did you try from a CMD window from Win 10 Installation drive?
      My Computers


  3. Posts : 17,622
    Win 10 Home 10.0.19044.1706 (x64) [21H2]
       #13

    Good job.



    As for the storage drives... if they are smaller that 2TB it doesn't really matter.
    For bigger than 2TB you definitely need a GPT partitioning scheme.
    With storage drives (non-bootable) it doesn't matter if the partitioning matches the BIOS settings.



    Repair Install: PC=2004 MCT=20H2. Fails.Have new MB & CPU. Complicated-image1.png





    Example: My BIOS is set to legacy. Back in January, I bought a 4TB storage drive. In order for Windows to "see" all 4TB, I had to make it a GPT drive.

    If left as an MBR drive, Windows would only "see" 2TB drive with 2TB of unusable unallocated space.
      My Computer


  4. Posts : 97
    Windows 10 Pro 64-bit
    Thread Starter
       #14

    Megahertz said:
    Did you try from a CMD window from Win 10 Installation drive?
    My Windows 10 DVD seems to be faulty. I will go and buy a flashdrive tomorrow so I can create new boot media.

    - - - Updated - - -

    I successfully converted to GPT with an install flashdrive. But it did complain about the rescue environment. I disabled and enabled it, but a repair install still fails.

    Not good to live without a repair environment, you get stuck like I am. So will install Windows from scratch. Will do a UEFI install to make it just that bit better.

    Thanks, for all the help.
      My Computer


  5. Posts : 39,955
    windows 10 professional version 1607 build 14393.969 64 bit
       #15
      My Computer


  6. Posts : 97
    Windows 10 Pro 64-bit
    Thread Starter
       #16

    Will do. Thanks
      My Computer


  7. Posts : 3,959
    Windows 7 HP 64 - Windows 10 Pro - Lubuntu
       #17

    A clean install was my first recommendation.

    Windows can be installed in two ways: Legacy-MBR or UEFI-GPT
    To install as Legacy-MBR you must boot the installation drive as Legacy
    To install as UEFI-GPT you must boot the installation drive as UEFI.

    As you have a new MB, you should install as UEFI-GPT
    Detach any other drives (SATA or Power cable) from the MB.
    On BIOS, disable fast boot and secure boot (you can enable after installation)

    During POST, press F? to launch the boot menu. You will see two options for the USB drive. USB UEFI (Name) and USB (Name). Select USB UEFI (Name).
    Go to install and delete ALL partitions on the SSD till you have one and only one unallocated space and then proceed.
    If you don't want to use MS account, don't enable updates or connect to the internet during installation.
      My Computers


 

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