Windows 10: Windows10 update damaged something, attempting repair, some advise adv

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  1. Posts : 2,346
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       1 Week Ago #21

    I think your ESP partition is messed up badly so let's try to re-create it. We will delete the partition 1 (ESP) then re-create EFI Partition and BCD.
    Please take note on all spaces. A quick way is to copy and paste what I have below into the command windows.
    Admin command, type:

    diskpart
    select disk 0
    select par 1
    delete par override
    create par efi
    format fs=fat32 quick
    exit
    mountvol U: /s
    bcdboot c:\windows /s U: /f UEFI
    mountvol U: /d

    Reboot the PC
      My ComputerSystem Spec

  2.    1 Week Ago #22

    topgundcp said: View Post
    I think your ESP partition is messed up badly so let's try to re-create it. We will delete the partition 1 (ESP) then re-create EFI Partition and BCD.
    Please take note on all spaces. A quick way is to copy and paste what I have below into the command windows.
    Admin command, type:

    diskpart
    select disk 0
    select par 1
    delete par override
    create par efi
    format fs=fat32 quick
    exit
    mountvol U: /s
    bcdboot c:\windows /s U: /f UEFI
    mountvol U: /d

    Reboot the PC
    It was successfully doing everything right up to:
    Mountvol U: /s

    There it again says:
    The parameter is incorrect
      My ComputerSystem Spec

  3.    1 Week Ago #23

    According to this link it could require a different command but I am not sure what they mean by "n" if that's letter E or volume 2, I don't want to screw it up by typing the wrong thing. And I'm not sure if it's correct to my machine?

    What the link says below:

    You Cannot Access an EFI System Partition with the Mountvol Utility in a WinPE Environment

    Symptoms

    If you use the Mountvol utility (Mountvol.exe) in a Windows Preinstall Environment (WinPE) on either a Windows XP-based or Windows Server 2003-based computer, you cannot gain access to the Extensible Firmware Interface (EFI) system partition by using the mountvol /s command. For example, if you try to use the mountvol x: /s command, you may receive the following error message:
    The system cannot find the file specified.

    Cause

    This behavior occurs because the Mountvol utility is not supported in WinPE environments.

    Resolution

    To work around this behavior, use the Diskpart utility (Dispart.exe) instead of the Mountvol tool. To use the Diskpart utility:
    Click Start, click Run, type diskpart in the Open box, and then click OK.
    When the Diskpart utility starts, type select disk n at the prompt (where
    n is number for the mapped ESP disk), and then press ENTER.
    Type select partition
    n at the prompt (where
    n is number for the mapped ESP partition), and then press ENTER.
    Type assign letter=x at the prompt (where x is the drive letter that you want to assign), and then press ENTER.
    After you follow these steps, you can access an EFI system partition by using the drive letter that you assign to the partition with the Diskpart utility.

    Status

    This behavior is by design.

    ***
      My ComputerSystem Spec


  4. Posts : 2,346
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       1 Week Ago #24

    You are talking about WinXP and Win Server 2003. Some of the info from the internet is pretty out of date.

    EDIT: Here's the screen shot. I booted the Windows Installation which is a WinPE:
    Click image for larger version. 

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Views:	11 
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ID:	184245

    Something is not correct with your Recovery disk. Perhaps, you might want to download: Windows 10, boot up then try again with Command prompt.
    Download Windows 10
    Last edited by topgundcp; 1 Week Ago at 09:25.
      My ComputerSystem Spec

  5.    1 Week Ago #25

    Alright, so I will arrange to get a disc copied from that link of windows10 to use as a new recovery disc, and then I will return to this thread.

    Thank you for your help and patience thus far, I will return soon.
      My ComputerSystem Spec


 
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