Earlier this week, Lenovo held its first 'Tech World' conference where it showed off several of its upcoming products including REACHit, which adds deep search functionality to Cortana. During the keynote, Satya Nadella joined Lenovo on stage to highlight the feature and also showed an unreleased build of Windows 10.

If you watch the video below, you can see the build shown several times and the watermark is removed, so we do not know which build this is. But, you can clearly see the new Edge icon for the company's upcoming browser which has not made its way into any of the leaked builds or those released to Insiders.