Microsoft’s second quarter earnings report released Monday had a few bright spots, including rising sales in mobile devices and cloud services. Overall, the company’s sales were up 8% in the quarter ending Dec. 31, though costs related to acquisitions and layoffs meant profits were down 10.6% to $5.9 billion. Despite the company’s good sales numbers, revenue from copies of its Windows operating system installed on new computers, long a reliable source of cash, were down 13% year-over-year.