Hi, so today I was playing a game on my laptop,I have a Sony Vaio with windows 7, and I decided to stop and delete some stuff on my laptop, to make it run better. So now, when I turn my laptop on. It will ask me how I want to run my computer, then show the Windows loading screen. After that, is the loading screen, BUT, when it goes to the loading screen, it's all black, and just my mouse. I've tried startup repair, and system recovery. None of it works. Please help.