[ubuntu-uk] GRUB problem dual-booting Ubuntu and Windows 8.1

[Gordon Burgess-Parker]

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Lenovo U410 - 28GB SSD and 500GB HDD, Windows 8.1, UEFI, Secure boot
and Intel Rapid Start enabled. (That's what the SSD is for)

When I install Ubuntu 14.04 as dual-boot, I can boot into Ubuntu from
GRUB but the Windows option doesn't work. I've tried the Boot Repair
tool from a live USB, but all that does is to add extra entries, none
of which work.

I installed GRUB on the EFI partition so that shouldn't be a problem.

I've gone into the BIOS, and set a Supervisor password, but it still
won't let me edit the Secure Boot settings. (I had to do that on my
Acer E3 in order to add Ubuntu to the secure boot database).



Has anyone managed to get the Windows option in GRUB to work on this
particular machine and configuration?
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