Bad Shutdown Results in blinking folder with question mark
When I started my Macbook Pro from sleepmode, bought in september 2013, it froze. I turned it off with the powerbutton but when I reboot I get a blinking folder with a question mark on it. I already tried the internet recovery but that didn't work. How can I fix this?
MacBook Pro, OS X Yosemite (10.10.2)