Hi Lottots91,
Welcome to the HP Forums!
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I grasp that when you start your notebook, you have a black screen and the light by the Caps Lock key blinks intermittently.
Here are documenst to assist you with this issue.
Troubleshooting Black Screen Displays with No Error Messages During Startup or Boot
Computer Does not Start (Windows 7, Vista, XP)
Computer Does Not Start and Emits an LED or Beep Code.
Please feel free to respond if you have any more questions or concerns.