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windows 7 32bit or 64bit? which one is better with mba

32 bit seems to be the supported method. I can tell you from experience that it is a seamless and smooth install, and runs perfectly on the MBA. The only thing I have noticed is power management is not as good on the Windows side of things. I have done some tweaking of settings and services, so we will see if that makes a difference.
 
elwood58 did you solve the issue with kb981957 causing blue screens?
 
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