I can't solve the GRUB issue

[petsam]

@afrolino02

What can i do for reset all grub, or set like normal install without affect my data?

Clean your system from grub-customizer files, re-install grub and update grub. (using chroot from ISO installer).
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Grub-customizer

You don't need Grub Customizer to set your default boot option. This is done in /etc/default/grub, usually without any change. Remove-uninstall Grub Customizer Compare normal grub and grub-btrfs relevant package files pacman -Ql grub | grep "etc/grub.d" pacman -Ql grub-btrfs | grep "etc/grub.d" against existing files ls -1 /etc/grub.d/ and delete what does not belong to them. 3. Re-create grub.cfg update-grub