Windows 10: How to install drivers properly for old laptop?

Hi community!
I am planing to have a clean Windows 10 installation after long time using Windows 7. My laptop is kind of old (Asus K55A from 2013, i5-3230M, intel HD 4000), and Asus's site doesn't have driver support for Windows 10. I heard a lot of people saying not to use third party software for installing/updating driver, but my personally sometimes find tool like Driver Easy, Snappy driver installer, Driver Pack Solution are quite useful in old laptop.
My questions are:

1. What is the best or optimal way to install or update drivers properly?
2. Can Windows get "intel chipset inf utility" by itself? Should I just let Windows do it automatically?
3. Which drivers can affect performance and stability? Do I really need all drivers the latest version? (because driver software like Driver Easy usually has newer version than current version for Realtek Audio, LAN, WLAN, Bluetooth, etc...)
4. Some laptops have Windows 10 support from manufactures, but after 2-3 years, the manufacture will stop releasing drivers update, specifically VGA driver, while vendor (intel, Nvidia) continue releasing newer version. That time, should I use manufacture's version (older) or vendor version (newer or latest)?

Thank you and hope to hear your answers and advice.

:)

 

Laptop driver/reformat question

This is excellent advice. Writing down the list of installed devices prior to re-formatting will save you a lot of heartache. With that list, you won't have to try to figure out exactly which wireless card or web cam driver you need since there will likely be several to choose from.

 

Modding Realtek + Dolby Home Theater driver to install on any laptop

So, my laptop (Lenovo Legion Y520) uses the Realtek audio driver, which comes in combination with the Dolby Audio (DAX2) app. However, I don't like the official driver for my laptop much (distorted sound), so I would like to install a different driver. I've tried downloading the audio drivers for some of the Thinkpad models, which come bundled with Dolby Home Theater or Advanced Audio. However, when I install such a driver on my laptop, I do not get the Dolby Home Theater functionality or app. I've also tried editing those Thinkpad drivers' .inf file by adding my sound chip Hardware ID to the list of supported audio devices. But still I do not get Dolby Home Theater.

So, is there a way to mod those Thinkpad drivers (or some other drivers) to get Dolby Home Theater funcionality along with the Realtek Control Panel? I would appreciate any help or suggestions.

 

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Ok, so let me get the basics down first.

1st delete the old driver(software or one by one)
2nd Install new drivers from download
3rd test new drivers

Reboot after steps 1 & 2?