Well I guess your internet access must be working okay since you've managed to start this thread.
Get all drivers from the HP website which serves your country:
http://welcome.hp.com/country/w1/en/support.html
If I'm wrong in my assumption and you need network drivers too, use another PC to visit the appropriate HP website.
Download the drivers you need and copy them to a pen drive.
Then plug pen drive in to your HP laptop & install the drivers that are on it.