Windows creates a profile for every single network it connects to. The function itself is not a bad idea but over time or when there is a network problem those network profiles may build up excessively and present you with some unpleasant name like ‘Network 139’. I surfed the internet in search for a way to remove all those, tumbled on numerous but useless responses by Microsoft support agents  suggesting to Open network and sharing center and Blah Blah. But now finally I have a proper fix.

I’ll keep it short:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList\Profiles

Simply erase the above key with Regedit.