KB5064399: Overview with user sentiment and feedback
Last Updated October 31, 2025
Probability of successful installation and continued operation of the machine
Overview
The KB5064399 update is a cumulative update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 and Windows 10 Version 22H2. This update was originally released on August 26, 2025, and is included in the Security and Quality Rollup dated September 9, 2025. It includes all previously released security improvements and cumulative reliability enhancements for .NET Framework 3.5 and 4.8.
General Purpose
This update aims to provide security and reliability improvements for .NET Framework 3.5 and 4.8 in Windows 10 Version 21H2 and Windows 10 Version 22H2. It addresses specific issues within ASP.NET and Windows Presentation Foundation (WPF) to enhance the overall functionality and security of applications relying on these frameworks.
General Sentiment
The general sentiment towards this update is positive, as it is part of regular maintenance routines and includes cumulative reliability improvements. Microsoft has not reported any known issues with this update, which suggests a stable release. However, users are advised to follow the usual precautions, such as restarting the computer after installation.
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 2025-10-31 02:18 AM
