Important When you install this update (2984006) from Windows Update, updates 2994897, 2977174, and 2995004 are included in the installation.
The September 2014 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 update rollup package resolves issues, and includes performance and reliability improvements. We recommend that you apply this update rollup as part of your regular maintenance routines. Check out the fixed issues in this update. Also notice that there is a prerequisite and a restart requirement for installing this update.
Issues that this update fixes
This update package fixes the issues that are documented in the following Microsoft Knowledge Base (KB) articles.
Mitigations View DNS events by using the Event Viewer and Computer Management snap-ins.
How to obtain the update rollup
Method 1: Windows Update
This update is provided as an Important update from Windows Update. If you turn on automatic updating, this update is automatically installed.
How to perform Windows Update
Open Windows Update by swiping in from the right edge of the screen (or, if you are using a mouse, point to the lower-right corner of the screen and move the mouse pointer up), tap or click Settings, tap or click Change PC settings, and then tap or click Update and recovery.
Tap or click Check now, and then wait while Windows looks for the latest updates for your computer.
If updates are found, tap or click Install updates.
Select update 2984006 under Optional, and then tap or click Install.
Note You might have to restart your computer to finish installing some updates. Save and close your files and apps before you restart so that you do not lose anything.
For more information about Windows Update, go to the following Microsoft website:
Note The update for Windows RT 8.1 can be obtained only from Windows Update.
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 services
Microsoft 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
To apply this update, you must first install update 2919355 on Windows 8.1 or Windows Server 2012 R2. For more information, 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
You must restart the computer after you apply this update.
Update replacement information
This update does not replace any previously released update.
The following table lists the thumbprints of the certificates that are used to sign the updates (.msu). Verify the certificate thumbprint in this Microsoft Knowledge Base article against the certificate thumbprint indicated on the update that you download.
Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows RT 8.1