Summary. This security update resolves a vulnerability in Microsoft .NET Framework that could allow remote code execution when .NET Framework processes untrusted input.

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.

1 Common Language Runtime (CLR). More information. The following articles provide information about supported .NET Framework versions for this Windows version. This includes the month and year of release, update replacement information, and help and support information for the update.

IMPORTANT Starting on January 15, 2020, a full-screen notification will appear that describes the risk of continuing to use Windows 7 Service Pack 1 after it reaches end of support on January 14, 2020.The notification will remain on the screen until you interact with it. This notification will only appear on the following editions of Windows 7 Service Pack 1:

View products that this article applies to. Introduction. This July 2017 Update for Windows Server 2008 Service Pack 2 (SP2), Windows 7 Service Pack 1 (SP1), and Windows Server 2008 R2 SP1 includes cumulative reliability improvements in the .NET Framework 4.5.2.

The updates are now available for installation through WSUS. Prerequisites. To apply this update, you must have .NET Framework 4.5.2 installed. Restart requirement

The updates are now available for installation through WSUS. Update deployment information. For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

File attributes for all supported x86-based systems . The English (United States) version of this update installs files that have the attributes that are listed in the following tables.

In the search box on the taskbar, enter device manager, then select Device Manager. Select a category to see names of devices, then right-click (or press and hold) the one you’d like to update. Select Search automatically for updated driver software. Select Update Driver. If Windows doesn't find a new driver, you can try looking for one on ...

From the Overview page, select Office apps and on that page, find the Microsoft 365 product you want to install and select Install. To install Microsoft 365 in a different language, or to install the 64-bit version, use the dropdown to find more options. Choose the language and bit version you want, and then select Install.