My laptop is giving 10-20 beeps on start shows Boot manu then turn on

Hi Samuel,

You could try a Hard Reset first by turning off you notebook, unplug it, and remove the battery.  Hold down the power button for 15-20 seconds.  Replace the battery, plug the unit in, and power up to see if the beeping stops.

Here is a link for beeping issues for your particular HP Notebook:

Solved: Random Beep From Laptop - HP Support Community - 6005776