How to solve the problem that Win8 system can't open WiFi

Right click on the network button in the tray area in the lower right corner of the computer and click “Troubleshoot” to open the Windows Network Diagnostics window.

In the Windows Network Diagnostics window, what type of network connection problem do you encounter? Select the following  I have encountered other issues”.

Select the network connection problem you want to troubleshoot as "Use a specific network adapter (for example, Ethernet adapter or wireless adapter)".

Select the network adapter to be diagnosed as "Wi-Fi" and click Next.

The system starts network diagnostics, wait a moment.

Enable wireless and turn off troubleshooting.

At this time, the problem that wireless can not be used is completely solved, and the function keys on the keyboard can also be used normally.