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How to remove Windows 11 bootloader from ubuntu 20.04?

gl flag

As I installed Ubuntu on my laptop as main OS, I wanted to remove Windows 11 completely. I deleted the windows files from gparted. I tried to remove the windows bootloader using Grub Customizer tool. It said in the tool that the windows bootloader has been removed but when I restart and go to the boot options the windows bootloader is still there. Can anyone help me?

Grub Customizer Image

And yes I saved after removing the bootloader.

oldfred avatar
cn flag
You did not need grub customizer. Just remove UEFI entry with efibootmgr, and remove /EFI/Microsoft folder in ESP, so grub2's os-prober has nothing to find. And then update-grub. Details: https://askubuntu.com/questions/1042031/how-do-i-remove-windows-from-the-uefi-boot-menu-after-custom-installing-ubuntu
shaileh_07 avatar
gl flag
Thank you very much! Worked like a charm.
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