I'm getting the below error. I have a dual boot Installed Windows 10 and Ubuntu 17.04 64-bit in Lenovo G500-I5-12GB RAM.
I also tried with fsck /dev/sda7 iIt started checking, but after 5 checks only numbers were showing on the screen (Like Matrix).

e2fsck -b 8193 /dev/sda7ore2fsck -b 32768 /dev/sda7? This will check your partition using an alternate super block. – Soren A Dec 15 '17 at 08:46