Overview

Microsoft has addressed a critical issue affecting Remote Desktop Protocol (RDP) sessions on Windows Server 2025 and Windows 11 24H2. Users experienced session freezes shortly after connection, rendering mouse and keyboard inputs unresponsive. This necessitated disconnecting and reconnecting to restore functionality.

Background

The problem emerged following the February 2025 Security Update (KB5051987) released on February 11, 2025. After installing this update, Windows Server 2025 devices began exhibiting RDP session freezes. Windows 11 24H2 systems were similarly affected but received a resolution with the KB5052093 optional update on February 25, 2025.

Resolution

Microsoft released the KB5055523 cumulative update on April 8, 2025, to resolve the RDP freeze issue on Windows Server 2025. Users are advised to install this update to benefit from the fix and other improvements.

Technical Details

The issue was linked to changes introduced in the February 2025 Security Update, which inadvertently affected RDP session stability. Microsoft utilized the Known Issue Rollback (KIR) feature to reverse the problematic non-security updates, restoring normal RDP functionality.

Implications

The RDP freeze issue significantly impacted IT administrators and organizations relying on remote management and support. The resolution enhances system stability and ensures uninterrupted remote operations, which is crucial for maintaining productivity and operational efficiency.

Recommendations

  • Install Updates Promptly: Ensure that all systems running Windows Server 2025 and Windows 11 24H2 have the latest updates installed.
  • Monitor System Performance: After applying updates, monitor RDP sessions to confirm the issue is resolved.
  • Stay Informed: Regularly check Microsoft's official channels for updates and advisories related to system performance and security.

Conclusion

Microsoft's prompt response to the RDP freeze issue underscores its commitment to system stability and user experience. By addressing the problem through cumulative updates and leveraging the KIR feature, Microsoft has mitigated the operational disruptions caused by this issue.

For more detailed information, refer to Microsoft's official documentation and support channels.