Assume that an OEM has several applications preinstalled and pinned to the Start screen in Windows RT 8.1, Window 8.1, or Windows Server 2012 R2. In this situation, they encounter one of the following issues:
If the OEM installs Microsoft OneNote, one of their applications is dropped from the Start screen.
If the OEM does not install OneNote, the customers see a blank space on the Start screen after the out-of-box experience (OOBE) wizard is run.
To resolve this issue, install update 2919355. For more information about how to obtain this update rollup package, click the following article number to view the article in the Microsoft Knowledge Base:
2919355 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 Update April, 2014
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows RT 8.1, Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows Server 2012 R2 Standard