Lets start with you helping us by identifying your notebook completely.
HP has produced and brought to market more than a thousand different models of notebooks and desktop PCs over the years. It is difficult to help you if we don't know which specific model you own..
Method #1: If the notebook will boot into Windows, you can retrieve your Product Number by pressing Fn + Esc key.
Method #2:
Remove the battery and look in the compartment where the battery was installed. You should see a Service tag with printed part number and a product name. Please post the p/n (with all alphanumeric characters) here. If you live outside of North America, it helps us if you post the country of purchase. Also post the installed CPU type. (AMD or Intel)
You can also find this information in the HP Support Assistant in the System information.
Regards,
erico