With the launch Windows 8 and the introduction modern applications, Microsoft also launched the online store Windows Store, where users can install and Update the respective applications. Sometimes, however, because of a weak internet connections, when desired Updating modern applications, the system may not be able to connect to Windows Store. For such situations, Microsoft launched O collection of updates downloadable for installed applications FROM Windows Store, which can be accessed by users via Microsoft Update Catalog.
Availability of these update-uri for Modern applications is only an alternative method for Updating modern applications already installed (users Windows 8 or Windows 8.1 they will not be able to install new applications using this method) on computers that for various reasons cannot connect to internet to install the respective updates via Windows Store. Updates can then be distributed via System Center, WSUS or included in operating system images.
The update packages from Microsoft Update Catalog available for modern applications are those listed below, they can be downloaded in all limb supported by Windows Store (certain editions of Windows, however, such as Windows RT and Windows 8.1 RT does not provide support for these updates; also these updates they are not available via Windows Update).

Microsoft recommend installing these updates via WSUS, but users can extract the files .msi from the packages .cab to do manual installation. However, it should be noted that the update packages cannot be used dism.exe for offline installation of them, the updates having to be installed through the .MSI installer available in the operating system (more information Find here).
Microsft Update Catalog can only be accessed through the browser Internet Explorer (to download the updates, enter KB number of them in the field of Search available on main page a Availability).
Note: In the update packages for modern applications included in the Microsoft Update Catalog, only those for the applications pre-installed in the system (installed with the system) are available. Modern third-party applications available in the Windows Store cannot be updated via the Microsoft Update Catalog.
STEALTH SETTINGS – How to update modern apps without connecting to Windows Store