Comment réparer l’EFI Bootloader dans Windows 10

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About heritier kandolo

CEO at rootandadmin Administrateur Systèmes et Réseaux Spécialiste en : • Langage de Script : Bash, PowerShell, AppleScript • Maintenance : Systèmes, Réseaux, Ordinateurs Maitrise : • Microsoft Certified Solution Associate MCSA Windows Server 2012 • Microsoft Certified Trainer MCT • Microsoft Office Master : Office 2013 • Microsoft Technology Associate: Windows Server Administration Fundamentals • Microsoft Technology Associate: Networking Fundamentals • Microsoft Technology Associate: Cloud Fundamentals • GNU Linux • Latex (Pour le traitement de texte) • MacOs

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2 comments

  1. Thanx allot! that was amazing!

    I´ve tried to merge part c with d in order to gain space on c with easeus and i ended up with the c\windows\system32\logfiles\Srt\SrtTrail.txt windows 10 error. After many tries and many errors like error 0x80070057 i’ve tried your fix and even thow i’ve got bootrec /fixboot acces denied i’ve continued with your command lines and it worked !

    THX

  2. Hi alex.

    please apply this instruction

    Windows 10 Installation Media:

    Insert the Media (DVD/USB) in your PC and restart.
    Boot from the media.
    Select Repair Your Computer.
    Select Troubleshoot.

    Choose Command Prompt from the menu:
    Type in the command:

    Diskpart

    Type in the command:

    List disk (Note which disk is your Boot drive number mine is 0)

    Type in the command:

    Sel disk 0

    Type in the command:

    List vol (Note which volume is the EFI partition mine is 4)

    Type in the command:

    Sel vol 4

    Type in the command:

    assign letter=V:

    Type in the command:

    Exit

    Type in the command:

    V:

    After you have assigned a drive letter Using Diskpart You can format the EFI partition:

    Example: if you assigned a letter V to the partition the command would be:

    format V: /FS:FAT32

    After the format you need to recreate the EFI directory structure with the command:

    MD \EFI\Microsoft\Boot

    Then change to the Boot directory with:

    cd /d V:\EFI\Microsoft\Boot\

    Then run:

    bootrec /FixBoot

    Finally run:

    bcdboot c:\Windows /l en-us /s V: /f All

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