To learn more about these vulnerabilities, see ADV190015.
All security and nonsecurity updates for Windows Server 2012 R2, Windows 8.1, and Windows RT 8.1 require the installation of update 2919355. We recommend that you install update 2919355 on your Windows Server 2012 R2-based, Windows 8.1-based, or Windows RT 8.1-based computer so that you receive future updates.
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.
This update applies to the Windows operating systems that are listed in the "Summary" section of this article. If you want to install the Adobe Flash Player update on an earlier version of Windows, try Adobe Flash Player download.
How to obtain and install the update
Method 1: Windows Update
This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.
- For Windows RT 8.1, this update is available through Windows Update only.
- For Windows Server 2016 and Windows 10, version 1607, the updates may not be installed automatically. To get this update, follow these steps:
- Select Start, and then type Check for updates.
- Select Check for updates.
Method 2: Microsoft Update Catalog
To get the standalone package for this update, go to the Microsoft Update Catalog website.
Additional deployment information
Windows 8.1 and Windows Server 2012 R2 File Information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.
Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2 file information
The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.