Microsoft Windows [Version 6.0.6001] (C) Copyright 2006 Microsoft Corp. c:\windows>netsh firewall reset ?
reset
Resets firewall configuration to default.
Remarks: Restoring the default settings will delete all Windows Firewall settings that you have changed. For example, if you have allowed certain programs through the firewall those programs will be blocked again.
NETSH / FIREWALL / RESET
netsh firewall reset - Windows Vista - commandResets firewall configuration to default. - Windows Vista netsh, firewall, reset, cmd, command, Windows, Vista