Open Control Panel from the Start menu.
Double-click on Administrative Tools.
Double-click on Services.
Double-click on Network Connections.
Set the "Startup Type" to Automatic and press Start (Button is enabled if service is not currently running) other wise press OK.
Go back to the Network Connections control panel and hit F5 (Refresh). If the icons do not appear and you receive an error message then do the following...
Click Start, and choose Run.Type cmd and press OK.
In the DOS Prompt, type cd \Windows\System32 and press the Enter key.
Type regsvr32 netman.dll and press Enter.
Type regsvr32 netcfgx.dll and press Enter.
Type regsvr32 netshell.dll and press Enter.
You will get a popup saying that the dll registered successfully after each one. Press OK.
Exit the DOS prompt by typing Exit and press Enter or just close the window down.
Restart the PC and check Network Connections, all the icons should re-appear.