I kid you not .. the Royal Navy is using Windows 2000 on warships and submarines! All you need is a BSOD at the wrong moment!
Source: http://www.theregister.co.uk/2007/02/26/windows_boxes_at_sea/
The Type 45 destroyers now being launched will run Windows for Warships: and that’s not all. The attack submarine Torbay has been retrofitted with Microsoft-based command systems, and as time goes by the rest of the British submarine fleet will get the same treatment, including the Vanguard class (V class). The V boats carry the UK’s nuclear weapons and are armed with Trident ICBMs, tipped with multiple H-bomb warheads.
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