My laptop which is about a year and a half years old running windows 7 wont start up. When i try and turn it on it shows the vaio symbol then just goes to the black screen it always goes to when it loads windows 7. It was working just fine the day before but today when i tried to turn it on it went to some disk check restarted and wouldn't boot back up it just stays at the black screen. Is there any way that i could fix this, i cant even get safe mode or anything else, just a black screen.