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I have a Tongfang Recoil III laptop with Windows 10 installer on a NVMe SSD and I recently installed Ubuntu 20.04 on a second NVMe SSD.

After the first ubuntu configurations and updates, I restart my laptop and tried to boot into windows, and the following error message appeared:

error: no such device: ECD8-XXXX

error: file `/efi/Microsoft/Boot/bootmgfw.efi' not found


Press any key to continue...

After this error I went into the BIOS menu and confirmed the boot order: "ubuntu" and then "Windows Boot Manager".

After exiting the BIOS without any changes made, but saving the changes on exit, the laptop booted into GRUB, I chose Windows 10 again and I was able to boot without any errors.

What I already did:

  • Checked the BIOS for any fast boot option and it does not have any.
  • Disabled Windows 10 Fast Boot option
  • Gave boot-repair a try (update GRUB, reinstall, ...)
  • Tried adding a custom GRUB menu entry equal to the auto generated one for windows but with the following line before the chainloader: 
    set root='(hd1,gpt2)'


    After all this attempts to fix the issue, it remains with the same behaviour as described in the beggining.

    My main frustration is: why does it boots well into windows when I first go into BIOS, even without changing anything?

    Can someone help me? I have already spent hours around this and I don't know what to do anymore...

    • tfrosendo
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    1 Answers1

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    i follow this link: Grub only works after viewing bios first

    i had exactly the same problem, i disabled "fast boot" in my Bios, and it fixed it ;). For the explication, i'm waiting for much better than me.

    Quentin
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    • as I said before, I don't have the "Fast Boot" option available in my BIOS menu... I already disabled fast boot in windows but the problem remains... – tfrosendo Oct 11 '20 at 19:12