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Instead of having the Grub menu appear to make a selection of which OS, I get the message:

Failed to open\EFI\ubuntu\grubx64.efi - Not found
Failed to load image \EFI\ubuntu\grubx64.efi: Not found
start_image() returned Not Found, falling back to default

The computer then goes into Windows.

I am a newbie, so please be explicit about any solution. Ubuntu 18.04.

Andra
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1 Answers1

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I encountered the same problem. I use Windows 11 and Ubuntu 20.04, but I think it might be the similar solution for you.

  1. Create a live USB/disk of Ubuntu

  2. If you are using Windows 10/11, search for change advanced startup options

  3. Advanced Start Up -> Restart Now

  4. Select Use a Device

  5. Select your USB that has Live Ubuntu on it

  6. Select Ubuntu and Select Try Ubuntu

  7. Connect Internet(Wifi)

  8. Open terminal and type:

    sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt update

    sudo apt install -y boot-repair && boot-repair

  9. Select Recommended repair

As an alternative solution that I didn't apply: