About this update
Subject Interface Packages (SIPs) are required in order to read the digital signatures on specific file types. After you install this update, SIPs enable the WinVerifyTrust function to handle a later version of Windows on the Windows Server Update Services (WSUS) server. SIPs also enable down-level WSUS environments to read the new file types in a later version of Windows that can be used for upgrades.
How to obtain this updateImportant If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.
Method 1: Windows UpdateThis update is provided as an Important update on Windows Update. For more information about how to run Windows Update, see How to get an update through Windows Update.
Method 2: Microsoft Download CenterThis update is available for download from the Microsoft Download Center:
Download the update for Windows Server 2012 R2 package now.
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online servicesMicrosoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
Update detail information
PrerequisitesTo apply this update, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed in Windows Server 2012 R2.
Registry informationTo install this update, you do not have to make any changes to the registry.
Restart requirementYou may have to restart the computer after you apply this update.
Update replacement informationThis update does not replace a previously released update.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.