Microsoft’s CEO Steve Ballmer says that Microsoft has sold over 400 million Windows 7 licences since the product was first launched in October 2009, which is equal to about 7 copies/sec being sold.
Brandon LeBlanc, communications manager at Microsoft, later announced the company’s contentment with todays figure announced:
Our previous statement of 7 copies of Windows 7 sold a second continues to hold true. We continue to see excellent momentum for Windows 7
Although Window’s success shouldn’t be surprising as it was continuously supporte d by entusiasts and user alike, but selling 240 million licenses within a year made Windows 7 Microsofts most successful product to date.