2 separate bootloader partitions. Grub launches the windows bootloader on a different partition so it isn't aware of anything other than itself. Then the 2nd bootloader actually launches windows. Don't try to share one partition or else windows will inevitably wind up clobbering the Linux loader.

[–] gh0stcassette@lemmy.blahaj.zone 2 points 1 hour ago

This assumes windows is not maliciously checking for other bootloaders in order to fuck with them, which I'm not willing to give MS the benefit of the doubt on tbh.

[–] trainsrkool@lemmy.ml 12 points 4 hours ago

Windows will know, its lik a cancer

[–] Ooops@feddit.org 1 points 2 hours ago* (last edited 2 hours ago)

Then Windows will fuck up the EFI entry itself. Easy to fix of course but a pain in the ass when you are just starting with Linux and have barely any idea other than reinstalling for the 10th time in a few weeks.

[–] senseamidmadness@lemmygrad.ml 2 points 3 hours ago

Grub refers to this as chainloading and I did it years ago successfully (though with windows 10). Everything has to be EFI boot so grub can see the windows bootloader.