HP Compaq Presario V3731AU

It is very likely that the drivers are under listings of different laptops. For example, your 3731AU's wireless driver may be the same as 3713TU machine. You may have to guess them one at a time or you can check the hardware chipsets from the manuals (both your machine and other machines) to compare. Check out the following listing and try a few drivers. My guess is at least the wireless will be the same between your machine and 3713TU.