Blinking folder icon at startup. HELP!
Please help, I'm in the middle of submitting college apps and deadlines are soon. Randomly when I tryed to turn on my MacBook a blinking folder icon with a question mark on it showed up. I can't start my computer. It was a gift and already used so I do not have the software disks. Pleeeeeeeeeeease help me. I'm desperate.
MacBook Pro