I installed Ubuntu 17.04 along with Windows 10 in my Lenovo ideapad and it was working great until today.
During the normal reboot procedure to get into the Ubuntu OS, 'system tools', the last option in the list, was selected by mistake; apparently there is some problem with the down-arrow key of my keypad. When the BIOS screen appeared, no tab was available to quit from the appeared screen. So, as it was written 'Click enter to go to set up', by mistake, I clicked ENTER and alas my screen was booted to Windows and I can't go back to my Ubuntu partition any more.
Any help to get back to Ubuntu will be appreciated. I spent some three days to complete the installations of necessary languages in it. I wanna retrieve them back without any loss of information.
The Boot-info can be viewed here.
Thank you.