How can you find out which WLAN / LAN drivers your notebook needs?

I installed a new operating system on my other notebook yesterday and unfortunately I'm currently unable to surf the Internet via Ethernet or Wi-Fi and I probably have to find the right drivers for it and download it and install it on this notebook? How can you find out which WLAN / LAN driver your notebook needs to access the Internet? Who knows what to do?

Maybe… Have a look at the manufacturer's support page of the model?

Notebook drivers can be found on the notebook manufacturer's website using the model name or serial number. You would then have to download the drivers from another device, if necessary also from your smartphone.

If you don't know the exact model name of your notebook, open the command prompt (cmd) and enter systeminfo there. At the top of the system model you can see the model name.

If the serial number is requested instead on the homepage, then enter wmic bios get serialnumber in the command prompt.

It is best to go to the manufacturer's website, there you can find your notebook (usually you can do this quickly and easily by entering the model number) and then you can download all drivers for your notebook.

Install a hardware detection program, use it to find the network adapter (s) and download the appropriate drivers for your operating system from the manufacturer's website.

Probably you could have been given specific help if instead of vague "notebook" you had written * what * that is for a notebook.

I will never understand why questioners always try to express themselves as vaguely and vaguely as possible and just not to let specific information grow over them

It is a Fujitsu Lifebook AH531.

I can confirm from my experience. It worked right away on my HP.