Every time that the network name information is updated on a Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2-based computer, optional event ID 1012 is logged in Event Viewer. Therefore, too many events that have ID 1012 are generated. The expected behavior is for the event to be logged only when a network name is added or removed.
To resolve this issue, install update 2919355. For more information about how to obtain update 2919355, 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, Windows 8.1 Pro, Windows RT 8.1, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard