Get the chipset INF from ASUS. It is not a driver, but a definition. It was made for your laptop, and likely has not changed. So, old is not an issue.
regarding other drivers, i.e. graphics, you should also get that from ASUS as they may have modified or customized the driver for your laptop. Using the Intel generic driver can cause problems.
So, your first line of support, like it or not, is ASUS.
I've to give up the idea of installing Windows 7 because it's impossible to find some drivers plus as you said the laptop might require non standard drivers.
Microsoft has been so skillful by making me hate Windows 10!
I just got back the laptop from the shop after reinstalling Windows 10 (still under warranty), then I thought to upgrade with the 1709 update and problems again this time with DirectX and the graphic card!
Thanks for quick help!