While it may shock a few that 2000 had such a feature, http://support.microsoft.com/kb/309798 explains how to configure Windows 2000 port and more filtering. It's a firewall, but I will not enter into any debate if it is or not.
Help, my PC with Windows 10 won't shut down properly
Since upgrading to Windows 10 my computer won't shut down properly. I use the menu button shutdown and the screen goes blank, but the system does not fully shut down. The only way to get it to shut down is to hold the physical power button down till it shuts down. Any suggestions?