I recently installed Ubuntu 13.04 Desktop (x64) onto my Windows 8 machine. Ubuntu loads fine however, on the boot menu when I select boot Windows 8 it comes up with a series of errors:
I also have the error message
KMV disabled by BIOS when I boot Ubuntu (though that does boot successfully afterwards).
I have heard something about secure UEFI but I do not know what that is really or how t should be disabled (if that is the issue).
My computer is a Lenovo IdeaPadZ500.