Disk 1 Partition Issues

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  1. Ghot
    Posts : 23,346
    Win 10 Home ♦♦♦19045.4355 (x64) [22H2]
       New #11

    VE3YF said:
    Partition Manger will not allow Disk 1 to be converted.

    Try the command prompt method.
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  3. SIW2
    Posts : 4,601
    several
       New #12

    VE3YF said:
    Windows Computer Management says that the boot info etc is on Disk 0 as per the 1st thumbnail Image.
    It tells you you are booted into the operating sysetm on C. The boot manager should live on the system partition.
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  4. Megahertz
    Posts : 6,379
    Windows 11 Pro - Windows 7 HP - Lubuntu
       New #13

    VE3YF said:
    Partition Manger will not allow Disk 1 to be converted.
    It is because the OS is in one drive and the boot manager on another.

    Don't just convert the drive to GPT with other software or it won't boot.
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  6. VE3YF
    Posts : 125
    Windows 10 Pro
    Thread Starter
       New #14

    Ghot said:
    From command prompt...
    Convert Windows 10 from Legacy BIOS to UEFI without Data Loss


    With 3rd party software...
    Convert MBR Disk to GPT Disk in Windows 10
    As previously stated, Partition Manager will not allow Disk 1 to be converted. Disk 0 and Disk 2 converted no problem
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  7. Megahertz
    Posts : 6,379
    Windows 11 Pro - Windows 7 HP - Lubuntu
       New #15

    Bad things happens when the hands works faster than the brains.

    Once again, a boot able GPT drive needs a EFI partition.
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  8. VE3YF
    Posts : 125
    Windows 10 Pro
    Thread Starter
       New #16

    Megahertz said:
    It is because the OS is in one drive and the boot manager on another.

    Don't just convert the drive to GPT with other software or it won't boot.
    That is impossible. I took Disk 1 and Disk 2 out of the machine, booted from a USB disk and installed Windows 10 on Disk 0. Then after the installation was completed, I installed Disk 1 and Disk 2 back into the computer.

    - - - Updated - - -

    SIW2 said:
    It tells you you are booted into the operating sysetm on C. The boot manager should live on the system partition.
    Yes the boot manager and the operating system is on the same drive, both on C
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  9. Megahertz
    Posts : 6,379
    Windows 11 Pro - Windows 7 HP - Lubuntu
       New #17

    VE3YF said:
    That is impossible. I took Disk 1 and Disk 2 out of the machine, booted from a USB disk and installed Windows 10 on Disk 0. Then after the installation was completed, I installed Disk 1 and Disk 2 back into the computer.

    - - - Updated - - -



    Yes the boot manager and the operating system is on the same drive, both on C
    On a Legacy-MBR the boot manager is on a partition set as Active. From post one the active partition is on the System partition on drive 1.

    If you detach drive 1 and 2 can you boot from drive 0? I wold say that you can't.
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  10. SIW2
    Posts : 4,601
    several
       New #18

    at administrator cmd prompt type ( or copy and paste the below line)

    REG QUERY HKLM\SYSTEM\CurrentControlSet\Control /v FirmwareBootDevice

    (then press enter)

    let us know what it says, like this

    Disk 1 Partition Issues-firmwarebootdevice-cmdprompt.jpg
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  12. VE3YF
    Posts : 125
    Windows 10 Pro
    Thread Starter
       New #19

    Disk 1 Partition Issues-screenhunter-23.jpgDisk 1 Partition Issues-screenhunter-24.jpgDisk 1 Partition Issues-screenhunter-25.jpg

    - - - Updated - - -

    So if I read things correct, as per my last message, The operating System is on Disk 0 (HARD DISK C), the boot system is on Disk 0, and confirmed by windows management, but that still does not tell me how to correct Disk 1 not being able to convert to GPT.
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  13. SIW2
    Posts : 4,601
    several
       New #20

    Boot means the partition you are currently booted into.

    It does not tell you where the boot manager is. The boot manager should be on the System partition.
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