For domain-joined Windows 8 Enterprise or Windows 8.1 Enterprise machines, sideloading is automatically enabled. Installation of a Windows Store app through any source other than the Windows Store is referred to as sideloading.

User must be logged on with domain credentials.

System Center 2012 R2 Configuration Manager (or later) client agent must be installed.

Windows 8 Pro, Windows 8 Enterprise, Windows 8.1 Pro, Windows 8.1 Enterprise, Windows 10 Pro or Windows 10 Enterprise.

The Application Catalog Web Service and Application Catalog Website Point roles must be operational on one or more primary sites.

System Center 2012 R2 Configuration Manager, or later.

Note that this contrasts with the Microsoft Intune Company Portal app (available through the Windows Store and the Download Center) which communicates directly with the Microsoft Intune service. The app communicates directly with the Configuration Manager on-premise server infrastructure.

Note: For Window 10 support, Microsoft System Center 2012 R2 Configuration Manager SP1 is required. The machine must be managed by Microsoft System Center 2012 R2 Configuration Manager, or later, with the agent installed. The System Center Configuration Manager Company Portal app allows users of Windows 8, Windows 8.1 and Windows 10 machines to view and install applications made available to the user by their administrators.

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