Network Driver gone ( CANT WIFI)

[Akira Shimazu]

So my friend kinda mess with setting, and the wifi symbol doesnt pop out. I check in device manager and its gone. Its hidden and i check it but it said error. So what do i need to do? 

 

Already update,restart and even reinstall 

And it doesnt use any external adapter

[Howitz]

find exactly what hardware it is, go on internet on another device with a usb key and download the right driver from there, go back to your pc and install the driver.