Sign in with Microsoft
Sign in or create an account.

Summary

This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow denial of service if an attacker sends a specially crafted HTTP packet to a target system.




To learn more about the vulnerability, see Microsoft Security Bulletin MS16-049.

More Information

Important

  • 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.

Additional information about this security update


The following articles contain additional information about this security update as it relates to individual product versions. The articles may contain known issue information.

  • 3147461 Cumulative Update for Windows 10: April 12, 2016

  • 3147458 Cumulative update for Windows 10 Version 1511 and Windows Server 2016 Technical Preview 4: April 12, 2016

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 turn on automatic updating, see
Get security updates automatically.

Note For Windows RT 8.1, this update is available through Windows Update only.

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 MS16-049 that corresponds to the version of Windows that you are running.

Windows 10 (all editions)Reference Table

The following table contains the security update information for this software.

Security update file name

For all supported 32-bit editions of Windows 10:
Windows10.0-KB3147461-x86.msu

For all supported x64-based editions of Windows 10:
Windows10.0-KB3147461-x64.msu

For all supported 32-bit editions of Windows 10 Version 1511:
Windows10.0-KB3147458-x86.msu

For all supported x64-based editions of Windows 10 Version 1511:
Windows10.0-KB3147458-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

A system restart is required after you apply this security update.

Removal information

To uninstall an update installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, click Windows Update, and then under See also, click Installed updates and select from the list of updates.

File information

See Microsoft Knowledge Base Article 3147461
See Microsoft Knowledge Base Article 3147458

Registry key verification

Note A registry key does not exist to validate the presence of this update.


Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Thank you for your feedback!

×