Installation advantages: Clean install : you need to install appropriate driver Install Over XP : Vista detect driver use by xp and install the right driver base on xp installation (do not format C partition) - case similar with windows 7 over vista Driver - Audio Conexant AC-Link Audio Driver 2007-02-09 , Version:6.14.10.575 A, 994.02k Download | Mirror Driver - Keyboard, Mouse and Input Devices (‏3) 1-HP Quick Launch Buttons 2009-05-01 , Version:6.40.17.2, 23.27M (‏xp-vista)‏ Download | Mirror 2-Synaptics Touchpad 2007-10-09 , Version:10.0.13.2, 24.26M (‏Previous versions available)‏ Download | Mirror 3- HP Wireless Laser Mini Mouse Software Driver 2007-03-05 , Version:4.0 A, 29.17M (xp-vista) Download | Mirror Driver - Bluetooth Support Software for HP Integrated Module with Bluetooth Wireless Technology (Microsoft Vista) ► 2006-12-22 , Version:6_0 C, 43.52M Download | Mirror Driver - LAN/Ethernet Realtek RTL8139/810x Family Fast Ethernet NIC Driver Download |Mirror Driver - Card Reader Texas Instruments Media Card Reader Driver PCI (TI-PCI) 6x12/7x12 Cardbus 2007-02-06 , Version:2.0.0.6 A, 5.21M Download | Mirror Mobile Intel 945GM Express Chipset Family Driver 2007-02-09 , Version:7.14.10.1114 A, 6.59M Download | Mirror Mobile Intel 910/915 Graphic Express Chipset Family Driver Download | Mirror Mobile intel 82825/82855 Graphic Read here. Wireless: The wireless Will be installed automatically, if not run windows update. Tou can read my explanation and see all the list of V2000 here: http://laptop-driver.blogspot.com/2009/03/compaq-presario-v2000important-to-read.html Tweet

 Before downloading and install this driver, i would like to outline several things. First windows 7 is Driver friendly OS (only for new model), which mean some of the driver already installed, so here is some important thing:

1. Normally the drivers need to be install is: Graphic (SMSBUS), Card Reader, Infrared, Quicklaunch, Modem and Touchpad.
2. Other Driver like sound, if you heard sound, no need to install audio. Similar to wireless and other, if they work no need to install.

 3. make sure to check windows updates, there are 2 sections which is critical update and optional updates, select optional updates and there you will see several updates for your driver especially graphics.

CHIPSET DRIVERS:
INF Update Utility - Primarily for Intel® 5, 4, 3, 900 Series Chipsets
Download 
 
GRAPHIC
Compaq Presario CQ40-128AU Graphic Driver
ATI Mobility Radeon HD 3200/3450/4200/4330  Graphics
Download 

AUDIO:
Compaq Presario CQ40-128AU Audio Driver
IDT High-Definition Audio CODEC Driver
Download 

Compaq Presario CQ40-128AU Button Driver
HP Quicklaunch Button
Download  (direct)

Compaq Presario CQ40-128AU Touchpad Driver
ALPS Touchpad Driver
Download 

HP Wireless Assistant
Download  (direct)

Compaq Presario CQ40-128AU LAN/Ethernet Driver
Realtek  PCI-E Gigabit Ethernet NIC Driver
Download 

WIRELESS:
Compaq Presario CQ40-128AU Wireless Driver
Broadcom Wireless LAN Driver for  Microsoft Windows 7
Download

CARD READER:
Compaq Presario CQ40-128AU CArd Reader Driver  
JMB38X MS SD SD/MMC xD Card Reader Driver
Download
  
Validity Sensor Driver For Windows 7
Download

WEBCAM:
Compaq Presario CQ40-128AU Webcam Driver.
Cyberlink  YouCam Software
Download 

Lightscribe System Software
Download 

INFRARED:
Compaq Presario CQ40-128AU Infrared Driver
ENE CIR Receiver Driver
Download

HP  USB Recovery flash Disk
Download

HP  Recovery manager for Windows 7
Download

HP  Mediasmart DVD software
Download