Microsoft is not scheduled to announce the consumer version of Windows 10 until January 21, but an apparent build has already been leaked, showing the changes coming.

The leak shows a whole bunch of new features, most importantly Cortana search will be added to Windows 10. This has been reported before, showing Microsoft wants Cortana as the default search service.

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It will feature as a search button or bar on the taskbar, to the right of the Start menu. Users will be able to use voice recognition if they have a microphone, or check up on updates. Settings from Windows Phone will sync with Windows 10.

Several apps have been updated in the new leaked build, including Calculator, Photos, Settings, Sound Recorder and other default apps. The Store has been updated to include music, movies, apps and games all in one service.

Another development is the Xbox app, currently only showing videos of friends on Xbox One. It is not confirmed, but highly likely that in the future users will be able to play Xbox One games on PC, or at least play some games on Xbox Live.

Microsoft's previous attempt at games on PC through Windows Live did not go down well with gamers, who criticized the poor service for locking out certain gamers and using different plugins and drivers than common titles.

However, offering exclusive Xbox One games like Sunset Overdrive on PC would be a good start in rebuilding the relationship.

Microsoft has also added a Contact Support app, allowing users to get in touch with Microsoft support if they are having a problem. Feedback and Get Started apps are both available for users to provide feedback and learn the new OS.

It is still early days, considering the January 21 event will most likely only go over the new features in Windows 10. It might be over half a year before Microsoft finally releases the new OS update.

TagsCortana, Xbox, Start menu, Xbox One