When you use the more advanced features of Windows and System Center components, you tend to run into issues and undocumented features once in a while. Here are a couple of useful links to websites which lists the recommended hotfixes that should be installed before contacting Microsoft support. And I’m usually deploying them in our own live environment as soon as they are released, to hopefully not run into the issues or sometimes find out potential problems with the fixes before recommending them to our customers.
Updated: 2015-08-23 with additional collections (DFS).
Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters
List of currently available hotfixes for the File Services technologies in Windows Server 2012 and in Windows Server 2012 R2
Recommended hotfixes, updates, and known solutions for Windows Server 2012 and Windows Server 2012 R2 Hyper-V Network Virtualization (HNV) environments
Updates for Active Directory Federation Services (AD FS)
Available Updates for Remote Desktop Services in Windows Server 2012 R2
Recommended hotfixes and updates for Windows Server 2012 DirectAccess and Windows Server 2012 R2 DirectAccess
Hyper-V: Update List for Windows Server 2012 R2 – kept up to date by the community (MVPs mostly).
List of Public Microsoft Support Knowledge Base (KB) Articles for System Center 2012 R2 Virtual Machine Manager (VMM 2012 R2)
List of currently available hotfixes for Distributed File System (DFS) technologies in Windows Server 2012 and Windows Server 2012 R2
Remember that you can import Hotfixes directly into WSUS and deploy them that way, just like any other update.
And this is a RSS Feed that lists the Latest KB Articles for Windows Server 2012 R2
I’ve got the RSS feed imported into Outlook, so I’ll easily see when there is a new one and will hopefully remember the issue when/if I run into it in the future.