there are probably hundreds of files for windows to run.. the only way to check i guess is to google each name, which is tiresome at best... AV software should be going through the system folders by default, filtering through for virii and other nasties, not checking if the system file is the correct version or type.. thats for the sfc /scannow command (with a winxp disc) is for.. (well, at least reverting it back to original staus)
i'm realy not to familiar with hp recovery so i'm just going on an educated guess... theoreticaly it should either wipe and reinstall windows plus its hp software or like a windows repair, write a new registry and fix dodgy system files...