Using my Ubuntu USB backup, connected to the internet and followed instructions to download, install and run Boot Repair via Terminal.
From Terminal to run okay the first time but got message about Secure Boot needing to be turned off. Then it continued running, but problem was not solved and computer could not reboot.
Got message http:paste.ubuntu.com/26291725
Turned off Secure Boot, installed and ran etc again and it's stuck on the following.. Boot repair search mode has been running for more than several minutes...
After some time I got the main graphical menu and selected the normal repair
Now this has been up for 20+ minutes with the Grub problem
No idea what to do next...
Some time later the task was complete and I got the following message:
An error occurred during the repair. A new file (/var/log/boot-repair/20171231_084453/Boot-Info_20171231_0844.txt) will open in your text viewer. In case you still experience boot problem, indicate its content to: firstname.lastname@example.org Locked-ESP detected. You may want to retry after creating a /boot/efi partition (FAT32, 100MB~250MB, start of the disk, boot flag). This can be performed via tools such as gParted. Then select this partition via the [Separate /boot/efi partition:] option of [Boot Repair]
Sent logs to bootrepair email. Was not able to reboot from hard drive. Was able to boot up from Ubuntu USB and login (as you can see) to Ask Ubuntu via my Google ID. Checked email... no response yet.
Ran gparted as suggested above. Got the following error: Gparted I/O problem
Update 4 Ran gparted agaun - results
Update 5 enter image description here
Update 6 Should I run Gparted data rescue?enter image description here