My brother had an Intel MacBook Pro and had installed Windows XP. Sadly, he died recently and his wife now has the laptop. Unfortunately, neither of us can get into the Windows part of it. We can't even find any reference to it and, when booting up, it automatically opens in OS X without any mention or option to boot up Windows. Can anyone give us any advice what settings to change to always give a choice of which OS we want to boot up in?