Wifi network not showing on notification bar also not working

[Musaddique]

Wifi network not not Working When f12 key on or off LED illuminated but wifi notification that not come up on bar

[Lil_Boy_Blue]

Hi
First:- Turn off the computer, press and hold the PWR button for 4 seconds.

Then - Leave only keyboard and mouse connected, disconnect all externally connected
devices such as Docking Station, USB storage devices, displays, and printers.
Unplug the AC adapter from the computer.

Next - Press and Hold the Power button for 15 seconds to Hard Reset.
Rinse and Repeat

NOW begin checking/testing/proving the Hardware is fit for purpose.
Power on your PC, press ESC (repeatedly), then F2 at the prompt.
Choose System Tests (Fast Test does a 4 minute hardware check).
AND/OR
HOW DO I USE DIAGNOSTICS?

HP PC Hardware Diagnostics Windows is a Windows-based utility that allows you to run diagnostic tests to determine if the computer hardware is functioning properly. The tool runs within the Windows operating system in order to diagnose hardware failures. HP PC Hardware Diagnostics Windows comes pre-installed on new HP computers, but if not on yours, download here:- http://ftp.hp.com/pub/softpaq/sp93001-93500/sp93457.exe

https://support.hp.com/gb-en/product/hp-15-r100-notebook-pc-series/7234951/model/7547583?sku=K8L96EA

HP Wireless Button Driver

1.1.5.1 Rev.A

4.7 MB

Jul 15, 2015

Download

WHAT is the Operating System?  32 bit or a 64 bit version of Windows8.