Where do I find all drivers?

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Last week, I purchased an HP 15-da0012dx notebook. I plan on making a clean installation of my OS, Windows 10 Home 64-bit v1803. However, I presume I am going to need to manually install my notebook's drivers. Where can I get a complete set of correct drivers?

So far, I have found two sets of drivers: 1) under C:\SWSetup and 2) my product's page (https://support.hp.com/us-en/drivers/selfservice/hp-15-da0000-laptop-pc/20395828/model/21837188). However, I have the following issues/questions:

1. The drivers under C:\SWSetup are a subset of those on my product's page. However, not all the versions in C:\SWSetup match the ones I have installed. Furthermore, I believe I have found at least one driver that is installed (and listed on my product's page) but is not in C:\SWSetup. Thus, the drivers under C:\SWSetup do not make a complete set.
2. Does my product's page list all the drivers I need or desire?
3. My product's page lists a number of drivers I don't find in Device Manager. How can I know whether or not these were pre-installed and thus necessary or desired?
4. Many of the most recent versions of drivers on my product's page are indicated to be for Intel's Whiskey Lake microarchitecture. However, I believe my notebook's CPU (Intel i3-8130U) is Kaby Lake. Is all the software on my product's page not specific to my notebook? For a given driver, do I want the most recent version; the most recent version for Kaby Lake, if indicated; the version installed on my notebook; or the version under C:\SWSetup?
5. There is some non-driver software on my product's page, including firmware and the BIOS. Should I install (or flash) this software, and if not, which versions should I consider backing up? Where can I find the versions of my installed firmware and BIOS?

I'll be happy to offer specifics about the drivers I have installed or under C:\SWSetup if asked.

[banhien · Accepted solution]

@star_limit

Double post, please use

   https://h30434.www3.hp.com/t5/Notebook-Software-and-How-To-Questions/Where-do-I-find-all-drivers/m-p...

Thanks.