There are 2 threads now with guides on how to use Microsoft Windows Firewall to block all traffic, and whitelist only selected traffic. People are saying this method works to stop Microsoft calling home. In my experience this kind of blanket blocking is the only way, I used all the tweaks including uninstalling packages, O&O Shut Up and PeerBlock, Microsoft still could call home regularly. The danger with using Windows Firewall is it is part of Windows and owned by Microsoft, Microsoft can change the firewall any time with auto update to allow Microsoft traffic. It only takes 1 such update to suck all the logging accumulated on your PC, making everything you did to block Microsoft useless!!! I read many great things about Comodo Firewall, it was voted best firewall many times. It is third party, will not be changed by Microsoft in auto updates. Can someone make a guide to use Comodo Firewall to block all Microsoft traffic?