windows 10 doesn't have network status/properties after upgrade from 7/8 (has WIFI and showing AP, but can't connet ), no WIFI, no network, no internet

windows.conf

My thinkpad has this problem. So
Step 1:
check if wlan auto config service is running and set to auto;

Step 2:
delete all vpn client software
delete all vpn adapter and its drivers
reboot

Step 3:
if still no luck, open cmd as administrator, do 
Run command line using cmd.exe as admin
Run netcfg -s n to check any 3rd parth network services through this command.
Normally the built in network service starts with ms_
 
Then use netcfg -v -u <network service name> to uninstall any third party network services.
 
https://support.microsoft.com/en-us/kb/3084164

credit：
https://forums.lenovo.com/t5/Windows-10/Windows-10-no-network-connections-or-wifi/td-p/2130264/page/4