I am currently in Windows 10 which is shared with Kubuntu 14.04
As I logged in to that particular laptop. into Windows 10. it immediately went into one of those rather large updates where it states the computer will start and turn off several times. It got to approximately 25% download when the screen went black with the following:
error: file '/boot/grub/x86_64-efi/normal.mod' not found
Entering rescue mode...
grub rescue> _
Reason for concern or let it keep running. Approx 20 minutes has elapsed with the "error" msg on the black screen.
Edited by Chris Cosgrove, 01 March 2017 - 06:53 PM.
Moved from Win 10 to Linux.