IMPORTANT Some customers who use Windows Server 2008 R2 SP1 and have activated their ESU multiple activation key (MAK) add-on before installing the January 14, 2020 updates might need to re-activate their key. Re-activation on the affected devices should only be required once. For information on activation, see this blog post.

Note After the ActiveX control is installed, the Microsoft Update Catalog screen opens. Enter some search criteria in the Search box, and then click Search . Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment.

Enhanced Key Usage (EKU) is described in RFC 5280 in section 4.2.1.12: This extension indicates one or more purposes for which the certified public key may be used, in addition to or in place of the basic purposes that are indicated in the key usage extension.For example, a certificate that’s used for the authentication of a client to a server must be configured for Client Authentication.

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.

View products that this article applies to. Summary. This December 13, 2016, Security and Quality Rollup for .NET Framework 4.6 for Windows Vista Service Pack 2 and Windows Server 2008 Service Pack 2, and .NET Framework 4.6 and 4.6.1 for Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1 includes cumulative .NET security updates and improvements in reliability in the .NET ...

Resolves a vulnerability in the Microsoft .NET Framework that could allow remote code execution when the .NET Framework fails to properly validate input before loading libraries. An attacker who successfully exploits this vulnerability could take control of an affected system. The attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

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.

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 update

Select Start, select Administrative Tools, and then select Microsoft Windows Server Update Services 3.0. Expand ComputerName , and then select Action . Select Import Updates .

For more information about this update as it relates to Windows 7 SP1 and Windows Server 2008 R2 SP1, see the following article in the Microsoft Knowledge Base: 4035036 August 2017 Preview of the Quality Rollups for the .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, and 4.7 for Windows 7 SP1 and Windows Server 2008 R2 SP1: August 15, 2017