Trying to fix a lenovo C200?

Hi when I try to turn on the lenovo C200 it only shows the start up screen with the lenovo logo and nothing else what do you think is wrong and what can i do about it.

Added (1). Lenovo C200 all in one

Added (2). Lenovo C200 all in one

Has anything changed? Add memory, update or change the BIOS settings?
from past experiences resetting the BIOS to defaults usually helped. Sometimes even an update will help