A Messy Transition: Practical Problems With 32bit Addressing In Windows @ AnandTech
 

*Source: AnandTech (http://anandtech.com/showdoc.aspx?i=3034)*
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For some time now we have been mentioning the potential problems that are likely to result from the switchover from 32bit(x86) Windows to 64bit(x64) Windows. Due to a multitude of issues, including Windows' memory management, the basic design of the PC architecture, and consumer support issues, there is no easy path for mass migration from 32bit Windows to 64bit Windows. As a result we have been expecting problems as consumers begin to make the messy transition.

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