Bleeping computer startups (I’m not sure if it is the computer that is bleeping or someone swearing at the computer) has a list of known startup processes,what they do and whether they can be disabled or not. I’ve got rid of quite a few entries from the new machine and it was useful for some of the hp related utilities that I hadn’t come across. I like this site as it actually gives you useful information whereas something like liutilities.com seems to be vague and prompts you to purchase their utility to get more information.