x2 to what Aaron said. Im on a Compaq laptop right now and let me tell you it is a HUGE PITA to find all the drivers after the reinstall (try finding audio drivers for your compaq online when the machine isnt recognizing your ethernet port). so yeah get all the drivers ahead of time. I also upgraded to Win7 some time ago, much better than vista
Most of what I do on computers fdor other people is to re-install the operating system & drivers
Drivers for Compaq or HP computers are EASY to find.
use another computer and search for "HP Compaq support & Downloads"
And download the LAN driver or WLAN for your appropriate model.
do not run it on that other computer just download it to a thumb drive
A thmb drive, because typically the card reader in a laptop (if so equipped)
usually won't won't work until you install the (typically Texas Instruments or Ricoh)
drivers for it. USB support is usually "native" (in the bios)
Once you have that loaded and can get the computer to open the browser
go to the HP-Compaq site with the computer and "run the list" of drivers.
Starting with a bios (if there is an update available) and the
newest chipset driver, then everything else. (audio, video, network)
I usually don't bother with modem drivers... after all who the hell has dialup anymore?
AD