I have windows 8 on my HP pavillion 14.
At first I was able to connect to the internet over wifi, suddenly I can no longer detect wifi connections, eventhough I have one. I ignored it, because I was able to find a replacement connection. I connect my Iphone to my laptop and it act as my internet for awhile. Suddenly, It stopped doing that too!
This is how it looks like now
https://imageshack.com/i/7gg1agj

Microsoft kernel debug network adapter
Realtek PCle FE family Controller

Please answer these questions to get more clarity on this issue.
- Did you make any changes to the computer prior to this issue?
- When you say “suddenly I can no longer detect wifi connections”, do you get any error message when you open any website?
- Have you updated all device drivers recently?

You might experience network or Internet connection issues in Windows for a number of reasons. Some common issues that can cause these problems are:

•A wireless network adapter switch that's not enabled.

•WEP, WPA, or WPA2 security key or passphrase issues.

•Cables that aren't connected properly.
•Corrupted or incompatible drivers.
•Missing updates.
•Network connection settings.
•Hardware or software problems.

Ensure that the computer is near the wifi hotspot.
Ensure that there is no obstruction between the wifi hotspot and the computer.

This tutorial is designed to help you identify and fix problems with wired (Ethernet) and wireless (Wi-Fi) network connections in Windows.

Wired and wireless network problems: http://windows.microsoft.com/en-us/windows/network-connection-problem-help#network-problems=windows-8&v1h=win8tab1&v2h=win7tab1&v3h=winvistatab1&v4h=winxptab1