Microsoft has reported healthy profits of $6.06 billion for the first quarter of 2013 (fiscal Q3), up almost 19% year-over-year (YOY). Total revenue for the quarter was $18.8 billion, up 8.2% YOY and beating Wall Street forecasts. It isn't all good news, though: The Windows division, due to the lackluster launch of Windows 8, saw no growth at all. With Microsoft still resolutely refusing to provide official sales figures, the poor performance of the Windows division is the strongest sign yet that Windows 8 is failing.