Win10 - Fix improper System\Active\Primary Partition  

  1. Posts : 3
    Windows 10

    Win10 - Fix improper System\Active\Primary Partition


    A friend recently upgraded to a SSD, but did NOT have a USB/Windows DVD. So I had her partition off some space using a laptop, which we then put the setup files on. From there, we plugged in the SSD and setup Windows. Problem is, Windows 10 decided to play the System, Active, and Primary flags all on the Partition with the setup files, and I was hoping to find a way to remove that, so I can delete that partition and have her combine her hard drive back into one large partition.

    Below is a picture of her Disk Management:
    Imgur: The magic of the Internet

    As you can see, I would like to move over everything from the ESD-USB partition (System, Active, Primary) to the C: Partition. I tried setting C: to Active and ESD-USB to Inactive, and it caused the PC to be unable to boot (so I reversed it back to how it was).

    I realize it's not something that necessarily needs to be fixed, but it'd be nice to fix it regardless.

    Any help would be appreciated, thanks.
      My Computer

  2. Posts : 264
    Windows 10

    Why dont you just make the 32 GB partition smaller?
      My Computer

  3. Posts : 3
    Windows 10
    Thread Starter

    It won't let me modify the partition at all.
      My Computer

  4. Posts : 18,319
    Windows 11 Pro

    From a Command Prompt (Admin) run:
    bcdboot C:\Windows /s C: /f BIOS

    If that completes successfully, then run:
    sel dis 0
    sel par 2

    Reboot the computer. Your C: drive partition should now be active, system and boot. Then you can use Minitool Partition Wizard to delete the 32GB partition and expand C: drive partition into the empty space.

    When you install Windows that way, and set up the partition to install Windows from, it should be at the end of the drive, not at the beginning. That will make it easier to delete the setup partition and expand C: drive into the empty space.

    I'm curious, though, why you did not just use a Windows 10 USB flash drive to load Windows on the new computer? You can make one from the tool here:
      My Computer

  5. Posts : 3
    Windows 10
    Thread Starter


    So, she lives in Sweden. I'm US based. She does not have an extra flash drive or DVD disk to burn the Windows 10 iso. On top of that, her PC's previous install was dead and wouldn't even boot into properly, so the only option I had was to hook up the SSD to her work laptop, install the windows 10 setup on it, and then run it that way. Was just unfortunate, really.
      My Computer


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