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I have just purchased a Macbook Pro which will run OS X Lion. Which version of Windows can I run in Bootcamp? 64 or 32 bit? Both?

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up vote 3 down vote accepted

Version 4.0 of Bootcamp for Lion, released July 20, 2011, drops support for all versions of Windows XP and Vista.

It supports 32-bit or 64-bit Microsoft Windows 7 Home Premium, Professional, or Ultimate.

Boot Camp 4.0 FAQ from Apple Support.

share|improve this answer – dev.e.loper Aug 23 '11 at 15:42

You can run Windows 7 in either 32- or 64-bit versions.

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Important to note that Windows XP Professional x64 Edition does not install in Bootcamp. Also, this list isn't correct for Lion. – ghoppe Aug 22 '11 at 23:27
I stand corrected then. – CajunLuke Aug 22 '11 at 23:35

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