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just a few days ago i purchased a dell inspiron laptop with pre-installed ubuntu 14.04 LTS. i was installing the software center and updating in the software updater and it was just completed upto 85% and then it's just goes unresponsive . after this i tried to shutdown but it won't so i just forcefully shutdowned using the power button.when i restarted it's showing a black screen and it's showing the following-
GNU GRUB version 2.02~beta2-9ubuntu1.3
Minimal BASH-like line editing is supported.for the first word,TAB lists possible completion. Anywhere else TAB lists possible device or file completion.
please help me to step forward!