60 million licenses sold by MS does not necessarily equate to the number in use or even sold to end users.

These are rubbery numbers that don't account for licenses held by OEMs or sitting in retail stock or purchases that have been downgraded, etc etc. 

OEMs, meanwhile, are less impressed.

http://allthingsd.com/20121228/fujitsu-not-pleased-with-windows-8-demand-either/