Compaq Presario CQ40-719TU Windows Vista Driver

CHIPSET DRIVERS:
INF Update Utility - Primarily for Intel® 5, 4, 3, 900 Series Chipsets
Download (direct link)

ETHERNET:
Realtek RTL8102E/8111C Family PCI-E Gigabit Ethernet NIC Driver
Download


WIRELESS:
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If you have Intel Wireless:
Intel Wireless LAN Driver for Microsoft Windows Vista
Download

If you have Broadcom Wireless:
Broadcom Wireless LAN Driver for Microsoft Windows Vista
Download

If you have Atheros Wireless
Atheros Wireless LAN Driver for Microsoft Windows Vista 
Download
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Software Support for HP Integrated Module with Bluetooth Wireless Technology
Download

HP Wireless Assistant
Download

 GRAPHIC/VGA:
Nvidia GeForce G 105M/103M Graphics Driver
Download'

IDT - High Definition Audio Codecs
Download (sp45211)
If it didn't work use below:
Download (SP41616)
Download (SP41500)

Texas instruments car reader
Download

Realtek USB 2Download0 Card Reader Driver
Download

JMB38X Card Reader Host Controller Driver
Download

Firmware Update for GSA-T50L Optical Drive
Download

Firmware Upgrade for Specific Hitachi Hard Drives
Download

HP QuickPlay Web Update
Download

Cyberlink YouCam Software
Download

Lightscribe System Software
Download

HP Quick Launch Buttons
Download