I have a Windows installation in a partition on my hard drive. The problem is, it's not showing up when I startup holding alt.
I installed Windows through VirtualBox, linked to a physical partition on my hard drive. It all fully installed and boots in VirtualBox, but it doesn't show up on the boot drive selection.
I installed through Vbox because my Optical drive is broken, so I can't use the actual Windows installation disk I have. I tried creating a 'bootable' Windows installation USB key with Boot Camp Assistant, but when it actually came to installing Windows, it wouldn't work.
So yeah, is there a way to tell EFI that the Windows partition actually exists?