http://agnitumblog.blogspot.co.uk/2012/05/security-test-reveals-users-of-64-bit.html
Is this true? Are users of 64-bit Windows anti-viruses really being left behind?
I do not know the veracity of this but it reinforces my inclination to always install the 32 bit version of Windows 7. Will a 4GB virtual address space (assuming LARGEADDRESSAWARE flag set) ever become insufficient in Windows 7?