Tablet is charing but won't turn on

How do i turn my lab top on. I've had it chargein all night and do all four of those slots need to be green before it will turn on i only have one green light# Hit <enter> to insert another list item, and <enter> twice in a row to end the list. To get subitems, repeat the bullet character once for each level of indent you want (e.g. ##)