It's called PEBCAK.
For the most part, Windows can be just as secured as Linux.
Problems manifest when incompetent fools to incompetent things.
I'm sorry, but that sounds a lot like saying "a car can be made as waterproof as a submarine, if you do it right."
Windows security is basically tacked-on afterwards.
Windows 95? Sure.
Windows Server 2008 R2? It's such an integral part of it, that I'm questioning your experience (or lack of it) from that statement.
It's called PEBCAK.
For the most part, Windows can be just as secured as Linux.
Problems manifest when incompetent fools to incompetent things.