I have a Lenovo E545 laptop which I had two bootable partitions: Windows 8.1
and had openSUSE 13.2 (x86_64).  I then upgraded to Leap 42.1, which seemed to
go without error.  I noticed on system restart that the Windows partition
vanished from the boot menu, so I went into the YaST Boot Manager and rewrote
the list, and the Windows partition reappeared.

Now when I boot the Windows partition with SecureBoot enabled I get something
like  this thread
<https://forums.opensuse.org/showthread.php/510685-openSUSE-Leap-42-1-Windows-10-and-secure-boot>
describes:

/EndEntire
file path:
/ACPI(a0341d0,0)/PCI(0,11)/Sata(0,0,0)/HD(2,1f4800,82000,908ea519918d9d41,2,2)/File(\EFI\Microsoft\Boot)
/File(bootmgfw.efi)/EndEntire
error: Not supported image.


Press any key to continue...

And as that post says this used to work (boot Windows) with SecureBoot enabled
with openSUSE 13.2.  After installing Leap, I must disable SecureBoot to boot
the Windows partition.