January 2017 Security Only Quality Update for Windows 7 SP1 and Windows Server 2008 R2 SP1

Applies to: Windows Server 2008 R2 Service Pack 1Windows Server 2008 R2 DatacenterWindows Server 2008 R2 Enterprise


This security update resolves the following vulnerabilities in Windows:
  • MS17-004 Security Update for Local Security Authority Subsystem Service (3216771)

More Information

  • The security fixes that are listed in Security Only Quality Update 3212642 are also included in January 2017 Security Monthly Quality Rollup 3212646 . Installing either update 3212642 or 3212646 installs the security fixes that are listed here.
  • If you use update management processes other than Windows Update and you automatically approve all Security updates classifications for deployment, both this January 2017 Security Only Quality Update, 3212642 , and the January 2017 Security Monthly Quality Rollup, 3212646 , are deployed. We recommend that you review your update deployment rules to make sure the desired updates are deployed.
  • This Security Only Quality Update is not applicable for installation on a computer where the Security Monthly Quality Rollup or Preview of Monthly Quality Rollup from January 2017 (or a later month) is already installed, because those updates contain all of the security fixes that are included in this Security Only Quality Update.
  • 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.

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 Windows Update FAQ.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.