Why you should've been running 64 bit Windows like yesterday already

One of questions we are always getting around here is whether you should get 32 or 64 bit Windows 7 and I always recommend 64 bits myself.
Anyways, here's another example of how 64 bit Windows is more secure and also explains why some games that use 16bit installers don't work anymore:
Windows plagued by 17-year-old privilege escalation bug
A security researcher at Google is recommending computer users make several configuration changes to protect themselves against a previously unknown vulnerability that allows untrusted users to take complete control of systems running most versions of Microsoft Windows.