You can’t simply click on the Network icon and rename  like other icons my computer, Recycle Bin. But you can rename network icon editing the Windows Registry.

1.    Press Window Logo + R , and type regedit in Run Window and then press Enter.
2.    Navigate to the following folder
HKEY_CURRENT_USER\Software\Classes\LocalSettings\Software\Microsoft\Windows\Shell\ MuiCache

3.    Locate and double-click on the following Registry entry

@C:\Windows\system32\NetworkExplorer.dll,-1

4.    Enter your desired name in the Value Data field

5.    Close the Registry Editor.
6.    Right-click anywhere on the desktop and select Refresh , and now you can see that, your network icon name has been changed.

Tags: Registry Hack, Windows Vista