November 13, 2019
.NET Framework 4.8
This update for Windows 10 Version 1703 includes a fix to an issue introduced in the October 15th Cumulative update. See the Quality and reliability improvements section for more details. Before you install this update, see the Prerequisites and Restart requirement sections.
Quality and reliability improvements
Address an issue where ClickOnce applications and applications creating the default AppDomain with a restricted permission set may observe application launch or application runtime failures, or unexpected behaviors. The observable issue was the System.AppDomainSetup.TargetFrameworkName is null, leading to any quirks enabling reverting back to .NET Framework 4.0 behaviors.
1 Common Language Runtime (CLR)
How to obtain and install the update
Install this update
This package is available as a download on the Microsoft Update Catalog website.
For a list of the files that are provided in this update, download the file information for the update.
To apply this update, you must have .NET Framework 4.8 installed.
You must restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update.