We still have to use Boot Camp.
Your question however may be taken too literally. Since we can have it so it boots into Windows, why must we avoid OSX?
Bob
Not to offend anyone's Mac sensibilities, can windows be installed on an Air without using OSX at all? The reason I ask is I have a client who is completely embedded in windows. He needs a notebook to travel with and would love something as thin and light as an Air. I'm aware of dual boot stuff but would really prefer a system that just boots to windows for him as he's not a techie at all (although he has a stunning array of computer goodies and uses them all, thanks to my tutelage). I remember when windows had versions for the PPC, Alpha platforms etc. but am not aware that is still an option. I run Snow leopard on a Dell M1330 using a special bootloader that is not MAC. True it's not a real Mac notebook with all native functionality but the hardware was lots cheaper than a real Mac and I love to experiment. In my clients case he'd like to run windows on a needlessly more expensive piece of hardware for no other reason than the Air is so thin and light. So, there you have the reason for my asking, "Is it possible to install windows on an Air (or any other Mac) as the only OS?"

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