If Network Adapter not showing in device manager or network connections

Follow the steps

1.  start -- run -- type "cmd"  & enter

2.  type - "netsh int ipv4 reset" and enter

3.  type - "netsh int winsock reset" and enter

4.  type - "netsh int winsock reset.reset log" and enter

Restart your system and go to run and type "gpupdate /force"  press enter