@Arsimael 2 partitions its not legasy. Only there is no recovery system partition. It’s in the windows section. EFI partition closed to wright changes. Jast need create a second EFI partition. Grub pick up the windows boot.
@sudomato You dont mess. UEFI Bios just see more options for boot. Having two EFI System Partitions (ESPs) on one disk is explicitly permitted by the EFI spec. But I still thought, you have disabled fast loading in windows?