Microsoft is reportedly testing a free version of Windows 8.1, which will come bundled with its Bing search engine.

Creatively titled "Windows with Bing," the software appears to be similar to the standard Windows fare, with the additional built-in search capacityperhaps best described as a sideways move, since Bing SmartSearch is already included with Windows 8.1, ZDNet pointed out.

Russian leaker Wzor this week posted screenshots of the new SKU, which ZDNet said is a monetization play by Redmond.

Citing unnamed sources, the tech site reported only minor differences between the current Windows 8.1 and this new, free license version, adding that "it may be a kind of placeholder for the future when consumer operating systems are, basically, free."

A Microsoft spokesman declined to comment on the reports.

It is unclear whether this move could mean a free copy of the software for new Windows users, or a free update for existing users.

Microsoft's final release version of Windows 8.1 arrived in October, reviving some sorely missed functions from pre-Windows 8 platforms but also adding to Redmond's goal of evolving highly mobile, touch-enabled, always-connected computing.

"Windows is delivering the most personal computing experience out there, making your device a unique extension of you and offering more ways to create an experience that is personal, expressive and keeps pace with your life," the company said at the time.

But, as is often the case with new softwareespecially with software developed by Microsoftmany longtime Windows users are still not happy with the new UI paradigm that's still front-and-center in Windows 8.1. Redmond appears to be working on a fix, details of which were leaked earlier this month, pointing to search and power buttons added to the Start screen, as well as a boost to keyboard and mouse functions in the UI.

Microsoft corporate vice president Joe Belfiore told a Mobile World Congress audience earlier this week that the updates will likely launch during Microsoft's Build conference on April 2.

For more see How to Download Windows 8.1, as well as the slideshow above counting The Top 6 New Features in Windows 8.1.

Editor's Note: This story was updated at 1:50 p.m. Eastern with comment from Microsoft.

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