Hi Lapr,
Welcome to the HPCommunity, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I will be happy to help with your sound issue. As there are 87 dv2700 models, I will need your product number, please. Try setting your speakers as the default audio device. This link will show you how to do it. It is for Windows 7 but the steps will be the same.
Thank you,