I installed FydeOS on my HP Compaq (8GB RAM, 500GB HDD) using the multi-boot installation option, and the install itself went fine. But after fully installing it on my disk, I ran into a problem: when I completely shut down the PC, FydeOS doesn’t appear in the GRUB menu anymore, and I can’t boot into the OS at all. Has anyone experienced this issue or knows how to fix it?