Throw out the windows boxes. Start with a robust OS like any First order of business is Defenestration.
Unix based system: Linux or Mac OSX
Nope, you want OpenVMS1... Security is not something that can be bolted on
, and this is unfortunately the case with *nix systems.
Linux is only free if your time has no value.
[Jamie Zawinski]
1 Actually what you really want is a formally verified OS, built by a formally verified compiler… which sadly doesn't yet exist.