Microsoft Offers Secure Windows … But Only to the Government.
If Ballmer and M$ had any business sense at all, they would offer this secure configuration as its default standard release. Keeping your customers safe and seucre just makes really good business sense - and not just for the Government! This is a very good reason to NOT use Windows (ok, maybe for games, but nothing else - because it is not secure enough on its own).
It also happens to be a very good reason to use Unix/Linux as your desktop - i.e. it is inherently more secure (granted you have to enable iptables with rules).
-- Tom