This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if an attacker successfully convinces a user to browse to a specially crafted website that accepts user-provided online content, or convinces a user to open specially crafted content. An attacker who successfully exploits this vulnerability could gain the same user rights as the current user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.
To learn more about the vulnerability, see Microsoft Security Bulletin MS16-057.
Important
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 turn on automatic updating, see
Get security updates automatically.
Note For Windows RT 8.1, this update is available through Windows Update only.
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Method 2: Microsoft Download Center
You can obtain the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.
Click the download link in Microsoft Security Bulletin MS16-057 that corresponds to the version of Windows that you are running.
More Information
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How to obtain help and support for this security update
Help for installing updates: Support for Microsoft Update
Security solutions for IT professionals: TechNet Security Troubleshooting and Support
Help for protecting your Windows-based computer from viruses and malware: Virus Solution and Security Center
Local support according to your country: International Support
File Information
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File hash information
File name | SHA1 hash | SHA256 hash |
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Windows8.1-KB3156059-x86.msu | 3715F1C1361377332038B0981E2612F3D04E846A | 46AAD8229975FA87331569F24CAEE23508BCE33B982536271F86982AEA8CB5F4 |
Windows8.1-KB3156059-x64.msu | 23F332F9C78AAAC223B862F58871BDAB244CFDE8 | 24269341D501648C0FDEB444547ACE412B1DB30FF1040A182E51B6D085A620B8 |
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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 and Windows Server 2012 R2 file informationNotes
* The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:Version | Product | Milestone | Service branch |
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6.3.960 0.17 xxx | Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 | RTM | GDR |