Problem is now found and resolved! ‘N’ and ‘KN’-versions of Windows 8.1 lack support for:
Camera-over-the-lock-screen. This feature does not work.
Geofencing. This feature does not work.
App Sync. This feature does not work.
OneDrive (formerly SkyDrive) and Photos. These apps cannot play videos.
Xbox Games. Some functionality associated with this feature does not work.
HomeGroup. Integrated media sharing through streaming features do not work.
Webcam. This feature does not work.
Windows 8.1 Mobile devices. There is no support for media synchronization, image acquisition, or file browsing.
Windows 8.1 camera devices. Cameras that use the picture transfer protocol (PTP) do not work.
Sound Recorder. Recordings are limited to the WAV format.
Group Policy for removable disks. This feature does not work in the N and KN editions of Windows 8 Pro.
Sensor and Location Platform. These features do not work.
In order to get MTP and PTP-devices to work you need to install this update, which unfortunately contains all of the software you opted out from by choosing N or KN.

Download update from the link:

https://support.microsoft.com/en-us/kb/2929699

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