While dual booting Ubuntu with windows, I had encountered 'Ubuntu grub not showing' problem.
At the stage, I typed on the following command on windows command prompt.
bcdedit /set {bootmgr} \EFI\ubuntu\grubx64.efi
It did nothing but added corrupted bootmgr as default in my startup.
I have solved the problem another way. But the corrupted bootmgr also shows up in the grub.
How can I undo the change?
The grub looks like this:
and boot manager looks like this:
