i wanted to do upgrading the drive on my ultrabook. made a Windows USB stick, booted it, clicked through to the disk selection screen and got this:
Reboot and Select proper Boot device
or Insert Boot Media in selected Boot device and press a key
No bootable device -- insert boot disk and press any key
no drives at all 😤 the BIOS clearly shows the NVMe SSD with its correct model and size. I've remade the USB stick twice. someone mentioned I might need Apple Security Update 2013-003 Mountain Lion loaded during setup, but I've never had to do that before and I have no idea which file to point the installer at. help me before I return a perfectly good SSD.
