KB5064403: Overview with user sentiment and feedback

Overview

The KB5064403 update is a cumulative update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2. This update was originally released on August 26, 2025, and is included in the Security and Quality Rollup dated September 9, 2025. It includes security and cumulative reliability improvements for .NET Framework 3.5 and 4.8.1.

General Purpose

The purpose of this update is to provide security and reliability improvements for .NET Framework 3.5 and 4.8.1 in Windows 11, version 22H2 and Windows 11, version 23H2. It addresses specific issues in ASP.NET and Windows Presentation Foundation (WPF) to enhance the overall performance and security of applications relying on these frameworks.

General Sentiment

The general sentiment towards this update is positive, as it is part of Microsoft's regular maintenance routine. The update aims to improve the security and reliability of .NET Framework components, which are critical for many Windows applications. There are no new security improvements in this release, but it does include all previously released security improvements.

Known Issues

Microsoft is not currently aware of any issues in this update.

Disclaimer: We take measures to ensure that AI-generated content is of the highest possible quality, but we cannot guarantee its accuracy and recommend that users do their own independent research. Generated on 2025-09-21 01:21 AM

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