Hi there, my friend ask me to install Windows 7 on her laptop, so i did but it failed and now i get the 'A disk read error occurred press ctrl alt del to restart' erroe but now after approximately 10 seconds the screen goes completely blank, whether i'm in bios or at the disk error screen. But the computer is still on, hard drive light flashes, ctrl alt and delete still restarts and the keyboard lights still work and operate. Does anyone know how i can solve this?