my laptop will boot up, I can hear it running but the screen is black. I've tried control + Alt+ del but nothing comes up, there is a #9 in a lock on the top of keyboard lights but i dont know what that is.
if oyu have a pc monitor plug the laptop into it and use the funtion keys to turn on the ext video port. if it does whe nit in windows go back to the onboard lcd screen if it black use a flash light. if you can see windows image it a backlight issue. if the unit under warranty send it in to be repaired. for the other person that posted when your in windows download ddu remover then boot into safe mode and remove your video drivers and then your anti virus see if there somthing damaged at start up that causing your issue.