The USB driver issue from Whistler (??) should be documented in our Connecting Scanners via USB
article. That article is linked in each of the 3 articles mentioned above, and is worth adding.
However your assumption here that someone would be able to find something via searching assumes that person knows for what they are searching. When you're a newcomer, that might be a stretch - they are, after all, starting off from the ground up, and often have no idea what they really need to know. These articles are not meant to be comprehensive - there's LOTS more behind them - but just a place to start. Even with the HP series, you gotta start somewhere...