Laptop doesn't find Wireless Network Connection

Hey, i'm not really good at explaining things, but I'll try my best.
The problem is that I have an old computer Acer Aspire 5315 which has this problem with WiFi, it can't find Wireless Network Connection.
I tried installing drivers but that doesn't help, I don't kow if wireless switch is responding, because nothing happens when I click it. But I does work well when I insert ethernet cable, and everything works just fine on another laptop. Is it a problem with computer it self? Is it possible to fix it?
I'm uploading a picture which shows that the laptos is able to find LAN connection, but it can't event detect Wireless Network Connection (so I can't manually enable it, how many videos, forums suggest)

Check in Device Manager to see if it is listed there.

There may be a button or Fn key combination to turn on/off the wireless, see if that's the case.
If above fail, try loading defaults in BIOS (either first screen or exit menu).