I was at the HP website downloading a driver for my printer. It showed me three different ways to get the driver the third being: Apple Software Updates: HP drivers will be available via Apple Software updates. Please note that the Apple software update process for HP drivers only applies to USB connected printers. 1. USB connection: You must have a printer connected via USB or a previous USB HP printer queue to enable software updates to download the latest HP printer driver for your specific HP printer. Do printer driver updates just show up in Apple Software update? If so why didn't the one I downloaded show up?