Audio.
Install UAA first and then install audio.
Microsoft Universal Audio Architecture (UAA) Bus Driver for High Definition Audio (sp33867)

ADI SoundMAX AD1984A Sound Audio Driver for Windows XP

Intel AMT Driver and intel Chipset Driver
HP EliteBook 8530p Intel AMT Driver

Intel Chipset Installation Utility for ICH9 for Windows 2000 and XP

Video/VGA/GRAPHICS DRIVER
ATI Graphics Video VGA Driver and Control Panel

Others.

Infineon Trusted Platform Module (TPM) Driver

HP EliteBook 8530p HP Quick Launch Buttons

HP EliteBook 8530p Chicony Camera Webcam Driver

HP EliteBook 8530p Synaptics Touchpad Driver

AuthenTec Fingerprint Driver (32-bit)

LSI High-Definition Audio (HDA) Modem Driver for Microsoft Windows XP

HP EliteBook 8530p Intel PRO/Wireless WLAN Wifi Drivers

Intel 82567LM Gigabit Ethernet Driver for Windows XP/Vista

Software Support for HP Integrated Module with Bluetooth Wireless Technology

HP EliteBook 8530p Ricoh Media Card Reader Driver