You can upgrade your HP 500 Notebook PC into Windows 7 and here are the drivers you will need since HP only provide Windows XP drivers on their support page.
Windows 7 Drivers for HP 500:
Chipset
Intel chipset Installation Utility
Download
Audio
Conexant CX20468 Audio Driver
Download
If failed, follow this instructions.
Graphics
Mobile Intel(R) 915GM/PM/GMS/910GML Express Chipset Family
You need to download and install this drivers manually, read here:
Download and Installation
Touchpad
Synaptic Touchpad Driver
Download
Mouse and Keyboard
HP Quick Launch Button
Download
Wireless
Intel(R) PRO/Wireless 2200BG Network Adapter
You need to download and install this drivers manually, read here:
Download and Installation
Original Drivers HP 500 - Windows XP Drivers
Here is the original drivers released by HP and it is for windows XP:
Chipset - Intel: Download
Audio - Conexant: Download
Graphic - Intel : Download
Touchpad : Download
Quick Launch : Download
Modem : Download
Wireless : Download
Do let me know if you have problem with the installation.
Windows 7 Drivers for HP 500:
Chipset
Intel chipset Installation Utility
Download
Audio
Conexant CX20468 Audio Driver
Download
If failed, follow this instructions.
Graphics
Mobile Intel(R) 915GM/PM/GMS/910GML Express Chipset Family
You need to download and install this drivers manually, read here:
Download and Installation
Touchpad
Synaptic Touchpad Driver
Download
Mouse and Keyboard
HP Quick Launch Button
Download
Wireless
Intel(R) PRO/Wireless 2200BG Network Adapter
You need to download and install this drivers manually, read here:
Download and Installation
Original Drivers HP 500 - Windows XP Drivers
Here is the original drivers released by HP and it is for windows XP:
Chipset - Intel: Download
Audio - Conexant: Download
Graphic - Intel : Download
Touchpad : Download
Quick Launch : Download
Modem : Download
Wireless : Download
Do let me know if you have problem with the installation.