HP ProBook 4420s Windows XP,Vista, 7 Drivers

All drivers listed here base on what power unit discharged on their support website. I've remake the list by removing unimportant utility and list out the most recent drivers you would like to put in. On HP website the drivers only available for Windows 7 32-bit and Windows 7 64-bit. I've check the drivers and located out that a number of the drivers support Windows XP and Windows prospect.
Chipset:
Intel Chipset Installation Utility
Windows XP, Vista, seven (32/64-bit) : Download Link

Storage
Choose one, Intel fast Storage Manager or Intel Matrix Storage Manager. IRSM commonly counseled for Windows seven and IMSM for prospect or XP. IRSM really associate improved version of IMSM wherever the boot time is noticeable in Windows seven. but you will still select IMSM in Windows seven if you need to.
Intel fast Storage Manager : Download Link

Intel Matrix Storage Manager: Download Link

MEI
Intel Management Interface Driver
Windows XP, Vista, seven (32/64-bit) : Download Link

Audio:
IDT High Definition Audio Drivers
Windows XP, Vista, seven (32/64-bit) : Download Link

Graphic
ATI Graphics Drivers (HD4350) and instrument panel
Windows XP : Download Link
Windows prospect, Windows seven (32/64-bit) : Download Link

Graphic
Intel HD Graphic 4000 Driver With Turbo Boost
Windows XP: head to Intel web site and choose graphic - Intel third Generation with Intel HD Graphic 4000 (or click here)
Windows prospect, Windows seven (32-bit) : Download Link
Windows Vista, Windows seven (64-bit) : Download Link

Webcam/Camera
HP Universal digital camera Driver
Windows XP, Vista, seven (32/64-bit) : Download Link

Touchpad
Synaptic Touchpad Driver
Windows XP, Vista, seven (32/64-bit) : Download Link

Hotkey
HP QuickLaunch Button
Windows XP, Vista, seven (32/64-bit) : Download Link

Fingerprint
Validity Fingerprint sensing element Driver
Windows XP, Vista, seven (32/64-bit) : Download Link

Security
HP 3D DriveGuard
Windows XP, Vista, seven (32/64-bit) : Download Link

Modem
LSI High-Definition Audio (HDA) Modem Driver for Microsoft Windows
Windows XP, Vista, seven (32/64-bit) : Download Link

LAN/Ethernet
Realtek Local Area Connection Driver
Windows XP, Vista, seven (32/64-bit) : Download  Link

Bluetooth
Broadcom 2070 Bluetooth Driver computer code
Windows XP : Download Link
Windows Vista: Download Link
Windows seven (32/64-bit) - Original Driver : Download Link

Card Reader
Realtek Card Reader Driver
Windows XP, Vista, seven (32/64-bit) : Download Link

Wireless:
Choose one base on your specification:

Realtek RTL8191SE 802.11b/g/n Wireless LAN Driver
Windows XP, Vista, seven (32/64-bit) : Download Link

Atheros 2011 Wireless LAN Driver
Windows XP, Vista, seven (32/64-bit) : Download Link

Intel Wireless LAN Driver
Windows XP, Vista, 7 (32/64-bit) : Download  Link

Ralink Wireless LAN Driver
Windows XP, Vista, 7 (32/64-bit) : Download  Link

Broadcom Wireless LAN Driver
Windows XP : Download Link
Windows Vista: Download Link
Windows seven : Download Link

Bluetooth Application
Install this helpful application for your bluetooth since it is free for applicable product like yours.
HP Integrated Bluetooth Module with Wireless Technology
Windows seven (32/64-bit) - Original Driver : Download Link

Notes:
ATI Graphics Drivers (Vista,7) Supports the subsequent graphic products:
ATI quality Radeon HD 530v ATI quality Radeon HD 530v ATI quality Radeon HD 530v ATI quality Radeon HD 5470 ATI quality Radeon HD 5470 ATI quality Radeon HD 5470 ATI quality Radeon HD 6370 ATI quality Radeon HD 6370