Important When you install this update (3013769) from Windows Update, update 3004545 is included in the installation.
The December 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 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.
How to obtain the update rollup
Method 1: Windows Update
This update is provided as an Optional update from Windows Update.For more information about Windows Update, see frequently asked questions on Windows Update.
Method 2: Microsoft Download Center
You can also obtain the stand-alone update package through the Microsoft Download Center.


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
Prerequisites
To apply this update, you must first install update 2919355 on Windows 8.1 or Windows Server 2012 R2.Restart information
You must restart the computer after you apply this update.Update replacement information
This update does not replace any previously released update.File information
File detail information
For a list of the files that are provided in this update 3013769, download the file information for update 3013769.File hash information
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.File name | SHA1 and SHA2 |
---|---|
Windows8.1-KB3013769-arm.msu | SHA1: 216740D6C014508D4454C6D6CE69E8F278813BB1 SHA256: F9E04FA21E44CA6F2521FF6BC5FFA10E4FF49A1ACBAD6F02DCE46FA689971378 |
Windows8.1-KB3013769-x64.msu | SHA1: 333FD115B90E8AD6D8111723AC03AEBD8A9D91FB SHA256: AFF4E6CD1A7999DD562E6F0C00CA14DAC76B68EB1BAB2718391FDE4AB2502780 |
Windows8.1-KB3013769-x86.msu | SHA1: 8ABC5EEC07AD26C155F3BF6958A430DFAAE2D6D4 SHA256: 1E4F62620DFB2CCC2ED3C69D894D7780DE11C0AC2B713B8931C668BAA27D4C8B |
Windows8.1-KB3004545-arm.msu | SHA1: 6D9E2D181F3A7FFABC29191397AB7A64DB9B91DC SHA256: 82A3C5CF1E768BE44B33BCE777BDEBB1970E435E441B50A6C58CFD8C4FE01EB0 |
Windows8.1-KB3004545-x64.msu | SHA1: 462CE6DBCF30B8907BF1F742961661BA1B4A6412 SHA256: 4CFFDE8DEA363DD3FAA1885E8F784E180C1FF102E36267B3686CA0C01789E5E0 |
Windows8.1-KB3004545-x86.msu | SHA1: 1977CBA1F42E52A0F17A3C468F222B3C3509017D SHA256: 3F20FB9196590D89CC38FDE00E0ADA9F95A1ECA1F836DECCFE95E19AF87FD7ED |
References
See the terminology that Microsoft uses to describe software updates.