Repair Windows boot loader

Even though I don't use much Windows anymore, I still keep it for some use case (maybe I will delete it at some case) and when I reinstall linux (because something is borked, like when I switch hdr on and off too many times and because of that, the screen was flickering), it is overwritten from the boot loader and I am lazy to extract the nvme each time (never done it).

Step

This guide will be incomplete for the moment because I do the repair not so often. But I use this tutorial. I will update this page when I will have to reinstall linux and what is needed is fresh in my mind.