Download
Intel Graphics:
Download
Realtek ethernet:
Download
Intel PRO/Wireless Driver:
ftp://ftp.hp.com/pub/softpaq/sp36001-36500/sp36414.exe
OR:
Broadcom Wireless Driver:
ftp://ftp.hp.com/pub/softpaq/sp34001-34500/sp34152.exe
MS UAA,required for Conexant Audio:
Download
The other drivers you need are posted on the C552US drivers page:
http://h10025.www1.hp.com/ewfrf/wc/softwareList?os=228&lc=en&cc=us&dlc=en&product=3370405&lang=en