This December 13, 2016, Security and Quality Rollup for .NET Framework 3.5.1 for Windows 7 and Windows Server 2008 R2 includes cumulative .NET security updates and improvements in reliability in the .NET Framework. For more information about reliability improvements included for this configuration, see Knowledge Base article 3195789 .
- 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 this 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.
Update deployment informationFor deployment information about this update, see Microsoft Knowledge Base Article 3205640 .
Update removal informationNote We do not recommend that you remove any security update.
To remove this update, use the Programs and Features item in Control Panel.