A big "shift" is now on to 64-bit Windows Vista PCs, even among consumers, according to Microsoft product manager Chris Flores. But he acknowledges that, even now, few if any 64-drivers are available for some categories of consumer products, including DVD/RW devices.
"The installed base of 64-bit Windows Vista PCs, as a percentage of all Windows Vista systems, has more than tripled in the US in the last three months, while worldwide adoption has more than doubled during the same period," Flores contended, late on Wednesday.
Microsoft's newly minted claims of tripled 64-bit adoption over the past three months are based on download figures from Windows Update. "Another view shows that 20% of new Windows Vista PCs in the U.S. connecting to Windows Update were 64-bit PCs, up from just 3% in March."