I would go to the official HP website and look for all the drivers for your Motherboard, Chipset, Audio, Video, Lan, Wifi, Etc.
If you don't know what drivers you need most major computer manufactures have a program you can download to auto detect what computer you have, If the HP computer cannot connect to the website you will have to copy them to a USB drive and install them, For Most people this works.
It may help in the future if you follow this tutorial and fill out your system specs, That way people will be able to help you better.
System Specs - Fill in at Ten Forums
It is very important that you go to the official HP website, There are many scammers out there.