When I turn on the computer, I get to the windows logo screen and then my monitor light flicks off and on for a second and the screen goes black with just the white arrow cursor. This started after two attempts at repairing windows earlier today when it refused to boot up past the logo screen. After about 15 minutes, the "windows is starting" screen comes up and then the "Welcome" screen. After that it hangs up. I have tried booting in safe mode, vga mode, hit my head on the wall mode and nothing works. I tried searching online, but can't find a solution that works for this scenario. I would appreciate any help you can give me!