Only install the driver you need, for example if there are no sound and no wifi, install audio and wifi only.
Conextant smart Audio
There are 2 appliccable graphic which is intel and nvidia.
Mobile Intel 945GM Express Chipset Family Video Driver
NVIDIA GeForce Go 7200 Driver
Ricoh Card Reader Driver
Normally windows will automatically install your wireless driver, if it did not:
sp41263 or sp45671
sp39911 or sp45524
Support Software for HP Integrated Module with Bluetooth Wireless Technology
Conextant HD Modem