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I had trouble with my first installation of ubuntu so I'm trying to uninstall everything so I can do a clean reinstall.

I've deleted the partition but the problem is that the grub bootloader is still on listed in the bios boot options.

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I've tried using the remove boot option feature on the bios, EasyBCD, and EasyUEFI but the grub bootloader won't go away.

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  • You can just have a reinstall of Ubuntu! Dec 22, 2016 at 6:05

2 Answers 2

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Parts of the bootloader are stored in the UEFI boot partition. For Ubuntu, this is only four files in a Ubuntu subdirectory:

EFI
EFI/ubuntu
EFI/ubuntu/grub.cfg
EFI/ubuntu/grubx64.efi
EFI/ubuntu/MokManager.efi
EFI/ubuntu/shimx64.efi

So, if you can manage to mount to UEFI boot partition (for example using a bootable Ubuntu USB key, choosing "Try It", and using the terminal from there), you can remove the files.

But I suggest you do not bother: when you do you reinstall, the four files will quite simply be overwritten.

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  • Can you elaborate on how to remove these files?
    – user633627
    Dec 22, 2016 at 6:46
  • In Ubuntu, you'd use the rm command. You should read up on mount points and basic Linux/Unix commands like rm. There are numerous online tutorials about these subjects.
    – Rod Smith
    Dec 22, 2016 at 14:44
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I think reinstalling the windows bootloader will automatically overwrite GRUB bootloader.

The procedure to reinstall windows bootloader is mentioned here.

However, I don't think that's required. You can simply proceed to reinstall ubuntu without doing so. That will be a clean Install.

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