To learn more about the vulnerability, see Microsoft Security Bulletin MS17-004.
- 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
- 3216775 MS17-004: Description of the security update for Local Security Authority Subsystem Service: January 10, 2017
- 3212642 January 2017 Security Only Quality Update for Windows 7 SP1 and Windows Server 2008 R2 SP1
- 3212646 January 2017 Security Monthly Quality Rollup for Windows 7 SP1 and Windows Server 2008 R2 SP1