Speaking at the Morgan Stanley Tech Conference, Peter Klein, Microsoft's Chief Financial Officer has proudly announced that 90 million Windows 7 licenses have been sold to date. In January, Microsoft said that at the end of December Windows 7 sales reached 60 million units so it seems 2010 has started off quite well for the latest Windows OS.
Klein expects Windows 7 sales to pick up pace in the future as enterprises increase IT spending and upgrade their machines. It's still uncertain when the refresh cycle will begin (later this year or in 2011) but something tells us it may start after Microsoft releases the Windows 7 Service Pack 1. Previous reports put SP1's release around autumn but nothing has been confirmed or officially announced.