Try un-installing the existing driver before re-installing from the Arduino Drivers folder. I believe XP has an option on that dialog to delete the driver files when uninstalling. If so, check that box to delete the drivers. That way it won't automatically re-install the wrong ones (if that is the problem).the laptops tells me that the best driver is already installed.
UNOs used to come pre-programmed with the blink program. I think that is still the case.