Microsoft Addresses Major Windows Bugs with September 2025 Updates
Over the past month, Microsoft has been busy addressing two significant bugs identified in its Windows Release Health dashboard. These issues, which emerged following the Patch Tuesday updates released in August 2025, have garnered attention from users and administrators alike. In a proactive response, Microsoft has introduced effective fixes as part of the September 2025 Patch Tuesday updates.
Bug 1: User Account Control (UAC) Prompts
A prominent issue that surfaced last month involved the User Account Control (UAC) functionality. Standard users encountered frequent prompts for administrator credentials while attempting to execute MSI operations. This problem led to frustrations as users reported errors during various tasks, including running MSI repair commands and working with Office Professional Plus 2010. The bug affected multiple platforms, including Windows 11, Windows 10, and servers, creating obstacles during app installations.
Initially, Microsoft proposed temporary workarounds via Known Issue Rollback (KIR).However, they have now implemented a permanent solution through the release of the KB5065426 update. With this update, UAC prompts will only appear during MSI repair operations if the associated file necessitates elevated privileges due to custom actions. Additionally, IT administrators will now have the capability to configure allowlists for specific applications, negating the need for prior Group Policy configurations associated with KIR.
Bug 2: Streaming Performance Issues in OBS
The second issue affected streaming applications, particularly those utilizing the Network Device Interface (NDI) like OBS. Users experienced lagging, stuttering, and compromised audio and video quality during streaming sessions. Initially, Microsoft advised users to adjust NDI Receive Mode settings (switching from RUDP to TCP or UDP).Fortunately, the latest Patch Tuesday updates have effectively resolved this problem, eliminating the requirement for these workarounds. This bug primarily impacted Windows 11 (version 24H2) and Windows 10 (versions 22H2 and 21H2), while server platforms remained unaffected.
Conclusion
It is commendable that Microsoft responded swiftly to these critical issues, rolling out patches in a timely manner after previously detailing workarounds and mitigation strategies. Their commitment to improving user experience and maintaining system integrity is evident in these updates.
- Improved handling of UAC prompts for MSI operations.
- Enhanced streaming stability for applications using NDI.
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