References to Windows 10 Cloud first began to appear about a week ago in build 15019, but a couple days later, there was a report that the OS would only run apps from the Windows Store, similar to the failed Windows RT. Finally, a build of the unannounced OS leaked yesterday, allowing interested parties to find out what Windows 10 Cloud is really all about.
Indeed, it will only run apps from the Store, but what's interesting about it is that at this time, the OS can't run Project Centennial apps, which are desktop apps that have been converted to UWP. This was contradictory to screenshots that came from another report that was based on Windows 10 Cloud build 15019 (the leaked build is 15025).
Windows 8 apps that are in the Store still work though, and other than that, most of the OS looks and feels exactly like Windows 10 for PCs. Extensions even work in the Edge browser.
When we went hands on with the new build, we did found two things that are notably missing: OneDrive and PowerShell. There is no OneDrive integration with the File Explorer, so your only option at this time is the UWP app. PowerShell scripts don't work either; however, this seems like something that might change in the future, as the option to "Run with PowerShell" still shows up.
Here's our hands on video with Windows 10 Cloud build 15025:
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