KB5079473: Overview with user sentiment and feedback
Last Updated March 28, 2026
Probability of successful installation and continued operation of the machine
Overview
This cumulative update for Windows 11, version 25H2 and 24H2 (KB5079473), includes the latest security fixes and improvements, along with non-security updates from last month's optional preview release. It addresses several key issues, including improvements to Secure Boot, File Explorer search reliability, and Windows Defender Application Control (WDAC) handling of COM objects. The update also includes a servicing stack update (SSU) to ensure a robust and reliable servicing stack for Windows updates.
General Purpose
The key improvements and changes in this update include:[Secure Boot] Additional high confidence device targeting data to increase coverage of devices eligible to automatically receive new Secure Boot certificates. Devices receive the new certificates only after demonstrating sufficient successful update signals, maintaining a controlled and phased rollout.[File Explorer] Improved reliability of search functionality when searching across multiple drives or 'This PC'.[Windows Defender Application Control (WDAC)] Improved handling of COM objects allowlisting policies. COM objects that were previously blocked when the endpoint security policy was set higher than the allowlisting policy are now allowed as expected.[Windows System Image Manager] Improved reliability of choosing trusted catalog files, with a new warning dialog to help confirm the file comes from a trusted source.
General Sentiment
Based on the information provided, this update appears to be a routine security and quality update for Windows 11 version 25H2 and 24H2. The changes focus on improving system reliability, security, and manageability, without introducing any major new features. While the update does not seem to have any major known issues, there is one reported problem with signing in to some Microsoft apps and services using a Microsoft account. This issue is acknowledged by Microsoft and is being addressed in a separate update (KB5085516).Overall, the sentiment around this update seems neutral to slightly positive, as it addresses several under-the-hood improvements without causing widespread disruption. As long as the known sign-in issue is resolved, this update should be a relatively safe and stable one for most Windows 11 users.
Known Issues
- Signing in with a Microsoft account might fail for Microsoft Teams Free and other apps, even when the device has a working internet connection. This issue is addressed in KB5085516.
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 2026-03-28 07:10 AM
