Microsoft has rolled out the KB5065429 cumulative update for both Windows 10 22H2 and Windows 10 21H2, introducing a suite of fourteen enhancements and fixes. Among these improvements are resolutions for unexpected User Account Control (UAC) prompts and significant performance issues related to NDI streaming software.
This update is classified as mandatory, as it encompasses Microsoft’s September 2025 Patch Tuesday security updates. These updates address two publicly disclosed zero-day vulnerabilities alongside 81 other flaws, reinforcing the security framework of the operating system.
Users can initiate the installation of this update by navigating to Settings, selecting Windows Update, and performing a manual ‘Check for Updates’. Given its mandatory nature, the update will automatically begin installation once the check is completed. To facilitate a smoother experience, users have the option to schedule a restart for their computer to finalize the installation process.
Source: BleepingComputer
Upon successful installation, Windows 10 22H2 will be upgraded to build 19045.6332, while Windows 10 21H2 will reach build 19044.6332. Additionally, users have the option to manually download the KB5065429 update from the Microsoft Update Catalog.
What’s new in Windows 10 KB5065429
As Windows 10 approaches its end-of-life in October 2025, Microsoft’s focus has shifted primarily towards bug fixes and system enhancements. The latest cumulative update addresses two notable issues: one related to lag and stuttering in NDI streaming software, and another concerning unexpected UAC prompts.
The comprehensive list of changes and fixes includes:
- [Input and Composition] Fixed an issue with the Chinese Simplified Input Method Editor (IME) where some extended characters appeared as empty boxes.
- [App compatibility (known issue)] Resolved an issue causing non-admin users to receive unexpected UAC prompts during certain MSI installer actions, which could hinder the operation of applications like Office Professional Plus 2010 and Autodesk products.
- [File Server] New! Introduced auditing for SMB client compatibility regarding SMB Server signing and EPA, enabling users to identify potential incompatibilities before implementing hardening measures.
- [Common Controls] Fixed an issue affecting the appearance of certain supplementary characters in Windows textboxes.
- [Licensing] New! Added an opt-in feature for administrators to allow outbound network traffic from Windows 10 devices, facilitating checks for Extended Security Updates (ESU) eligibility for AAD users with Windows 365 subscriptions.
- [Mobile Operator Profiles] Updated Country and Operator Settings Asset (COSA) profiles.
- [Multimedia] Fixed an issue where mf.dll failed to enumerate redirected web camera devices in Remote Desktop Services (RDS) environments.
- [Windows Hello] Corrected an issue where Narrator misidentified the “Enhance Facial Recognition Protection” checkbox under Facial Recognition settings.
- [Search pane] Fixed an issue that could prevent the Windows Search pane from displaying the preview pane correctly.
- [Family Safety] Resolved an issue where the “Ask to Use” approval flow was not triggered for blocked apps, ensuring it now appears as expected.
- [Portable Devices] Fixed an issue affecting the Removable Storage Access policy.
- [Windows Backup for Organizations] New! Windows Backup for Organizations is now generally available, providing seamless device transitions and enterprise-grade backup and restore capabilities.
Microsoft has indicated that there are no known issues associated with this update, ensuring a smoother experience for users. For a detailed overview of all fixes, users can refer to the KB5065429 support bulletin as well as last month’s KB5063842 preview update bulletin.
