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?


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.


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

  • 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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