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I have a Windows 10 Laptop booting in EFI mode. I currently have Windows 10 and Linux Mint installed. I want to be able to boot into Linux mint from Windows Boot Manager. The thing is, I kind of deleted the Boot Entry for it, because it wasn't working anyway. (It was, but the computer didn't show a boot manager, just booted straight into Windows) And now I have a Linux Mint install without any sort of Boot Entry to boot into it. I think I'm good, because the "ubuntu" directory in the EFI partition still exists, along with grubx64.efi. Now what I need to have:

When the laptop boots, I need to be able to choose which OS I want to boot.

I know this HAS to do with BCD, I tried EasyBCD, that doesn't work with UEFI Boot, I tried Visual BCD Editor, couldn't for the heck find out how that works, and now I'm just stuck with it only booting straight into Windows.

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  • 1
    askubuntu.com/questions/221835/…
    – user931000
    Aug 16, 2019 at 14:16
  • I have GRUB. But not the Boot Entry. Is there any way to boot into GRUB from Windows Boot Manger?
    – ZeroSkill
    Aug 17, 2019 at 7:10
  • No, there isn't. What boot entry are you missing?
    – user931000
    Aug 17, 2019 at 9:25
  • Thanks for your reply, I have already fixed this problem, by just going into the UEFI, and booting the grubx64.efi manually each time I want to use Linux. As Linux is not my primary OS, this isn't really a problem for me.
    – ZeroSkill
    Sep 4, 2019 at 10:32
  • 1
    I have had Windows bootloader boot to linux. user931000 information is not correct.
    – Krista K
    Feb 7, 2020 at 16:00

3 Answers 3

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I fixed this eventually by just booting into the UEFI menu > Boot Device Options > Boot From EFI File... > Select grubx64.efi

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    And how do you boot in the UEFI menu?
    – Jean Paul
    Jan 26, 2020 at 19:26
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    The command which worked for me was bcdedit /set "{bootmgr}" path \EFI\ubuntu\grubx64.efi
    – Jean Paul
    Jan 26, 2020 at 19:38
  • Not work for fedora 38 workstation. It seems you still need to tell bcd where the core image of fedora is. @JeanPaul
    – Nick Dong
    May 13, 2023 at 18:13
-1

This command which worked for me was

bcdedit /set "{bootmgr}" path \EFI\ubuntu\grubx64.efi
or
bcdedit /set "{bootmgr}" path \EFI\debian\grubx64.efi
or
bcdedit /set "{bootmgr}" path \EFI\grub\grubx64.efi

...etc

check your gubx64.efi path first.

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-2

Windows Boot Manager showing linux

There was a comment to original question stating Windows Boot Manager cannot boot to linux. This is FUD. I have done it with Windows 8. I wasn't able to get the pretty screen like you see in the attached pic, so I eventually went back to Grub.

In my exact case, I didn't get the GUI boot choice, instead it was the same menu as when you F8 as windows is starting. It looks similar to how you would choose Safe Mode, however it had Windows and Ubuntu listed.

If you can't google how to do it manually, there is an app for that from NeoSoft called Easy BCD, which is free for non-commercial use.

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    Thanks for the reminder about EasyBCD, it has given me good results in the past. Unfortunately, at least the free version, did not work for my UEFI based PC as the "add Linux boot" entry was disabled.
    – luv2learn
    Jul 2, 2021 at 4:25
  • Windows Boot Manager cannot boot to linux in EFI mode. Are you saying that this screen shot is with UEFI?
    – Andrew Savinykh
    Jan 8, 2022 at 23:16
  • @AndrewSavinykh Do you have references for this? I tried and I'm failing, but I like to know if this is an official statement
    – Daniel Alder
    Jun 7, 2023 at 14:05
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    "If you can't google how to do it manually, there is an app for that from NeoSoft called Easy BCD, which is free for non-commercial use." this is not the way we explain here HOW things work. a bcdedit /enum listing would be quite helpful for example
    – Daniel Alder
    Jun 7, 2023 at 14:28
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    EasyBCD says that it won't work on UEFI systems and it requires legacy boot (BIOS/MBR)
    – Bogdan Mart
    Aug 27, 2023 at 10:46

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