Microsoft has released an out-of-band update, KB5061977 (OS Build 26100.4066), on May 27, 2025, to address critical issues affecting Windows 11 systems. This unscheduled update aims to resolve specific problems that emerged after the April 2025 Patch Tuesday updates.
Key Fixes and Improvements:
- Active Directory Group Policy Anomalies: The update addresses an issue where audit logon/logoff events in the local policy might not display as enabled, even though they are functionally active. This discrepancy could lead to confusion among administrators regarding the actual state of auditing policies. (windowsforum.com)
- Windows Hello Authentication Issues: After installing the April 2025 security update (KB5055523), some users experienced failures in Windows Hello authentication, particularly in Key Trust environments. The KB5061977 update aims to resolve these authentication issues, ensuring seamless user logins. (learn.microsoft.com)
- Remote Desktop Freezing: Users reported that Remote Desktop sessions would freeze shortly after connection, rendering mouse and keyboard inputs unresponsive. This update addresses the freezing issue, enhancing the stability of Remote Desktop sessions. (learn.microsoft.com)
Out-of-band (OOB) updates are released outside the regular monthly update cycle to address critical issues that cannot wait for the next scheduled update. These updates are typically deployed to fix security vulnerabilities or significant functionality problems that pose immediate risks to users.
Installation and Deployment:
The KB5061977 update is available through Windows Update and the Microsoft Update Catalog. Users are encouraged to install this update promptly to mitigate the issues addressed. As with all updates, it's advisable to back up important data before installation and to monitor systems for any unforeseen issues post-update.
Conclusion:
The release of KB5061977 underscores Microsoft's commitment to maintaining the stability and security of its operating systems. By addressing these critical issues promptly, Microsoft aims to ensure a seamless user experience and uphold the integrity of Windows 11 systems.
Source: Microsoft Support https://support.microsoft.com/en-us...-of-band-a15fd6bb-313a-4a24-9e35-21dbcad2aa99
