Hardware: ASUS UX303LA with Windows 8.1, i7 5500U, 12GB RAM

Steps to Reproduce: 
1. Factory/Plain installation of Windows 8.1
2. Burn a Tumbleweed (or 13.2) USB stick - Tried with a NET, DVD, or Live ISO
3. Boot to it - Blue ncurses screen asking if you trust the SUSE Keys pops up
4. Click Yes
5. End up at a Grub2 command prompt, system refuses to boot into YaST - lots of
different attempts to get it booted by setting linuxefi and initrdefi don't
work
6. Clearing KEK, etc, in the Bios doesn't help
7. Trying different USB sticks doesn't help
8. The 'do you want to trust SUSEs Keys' ncurses window never appears again
9. Switching the BIOS to boot into Legacy mode, booting to a liveUSB in Legacy,
wiping the hard drive and starting the process fresh works..but obviously, you
have no opportunity to dual boot with Windows 8

Looks to me like there is something wrong with how we're currently trying to
insert keys/shim/whatever into the EFI configuration present on a fresh Windows
8.1 install. 

This is a pretty serious problem if people want to easily install openSUSE on
freshly purchased hardware.