Compaq Presario V2641TS Windows 7 Driver

Chipset
Intel Chipset Installation Utility for 4 Series 
Version:9.1.1.1015 A, 2.25M
Download

Compaq Presario v2000 Graphic Driver

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There are 2 graphics drivers, you must choose base on your specification.

Mobile Intel 915GM/GMS, 910GML Express Chipset Family Driver
Download

Intel 945/965 Graphics Driver for Microsoft Windows 7
Version 8.15.10.1930  22MB (32-bit)
Version 8.15.10.1912  24MB (64-bit)
Download (32-bit)
Download (64-bit)

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Audio
Compaq Presario v2000 Audio Driver
Follow this guide:Download and installation Guide

Button - Keyboard
Compaq Presario v2000 Button Driver
HP Quicklaunch Button
Download

Card Reader
Compaq Presario v2000 Card Reader driver
Texas instrument card reader
download

Webcam - Software
Compaq Presario v2000 Webcam driver
Cyberlink YouCam Software
Download

Webcam-Driver Only
HP 1.3 MegaPixel (MP) Webcam Software Drivers
Version 1.0, 4MB
Download
(install in compatibility mode for windows vista) 

Touchpad
Synaptics TouchPad Driver
Version 16.0.1.0  108MB
Download

Compaq Presario v2000 Wireless Driver

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Intel Wireless LAN Driver for Microsoft Windows 7
Download

Broadcom Wireless LAN Driver for Microsoft Windows 7
Download

Atheros Wireless LAN Driver for Microsoft Windows 7
Download

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LAN/Ethernet
Compaq Presario v2000 LAN/Ethernet Driver
Realtek RTL8139/810x Family Fast Ethernet NIC Driver
Download link