Boot into your bios and check the sata mode. A number of machines that I work with(acer predators most notoriously) will for no discernable reason switch from achi mode to rst optane, resulting in no drive being accessible to the os. Switching back to ahci resolves it.
Boot into your bios and check the sata mode. A number of machines that I work with(acer predators most notoriously) will for no discernable reason switch from achi mode to rst optane, resulting in no drive being accessible to the os. Switching back to ahci resolves it.