Microsoft's Windows 10 operating system has the potential to lead to significant gains in search market share for Bing, or so the company predicts in an announcement today. The new operating system puts Bing at the forefront, which is a change the company says will lead to query volume gains from 10 to 15 percent as early as September. Microsoft is framing this as good news for Bing advertisers, suggesting there will be "significant volume" in time for holiday campaigns....