Any upgrade offers will be focused on boosting the number of people using Windows 8.1. This Bing-powered version of Windows 8. It’s not clear how committed Microsoft is to these plans, but the experiment is part of a number of initiatives designed to push and monetize Microsoft’s cloud services and apps.
Bing-powered apps are currently bundled into Windows 8.1, and a leaked version of “Windows 8.1 with Bing” does not appear to reveal any significant changes yet. Microsoft recently unveiled its Windows 8.1 spring update, and the company is expected to further detail the update at its Build developer conference in April