A recent security update for Windows Server 2025 is causing Remote Desktop sessions to freeze.
Published: Mar 28, 2025
Key Takeaways:
Microsoft has acknowledged a new issue causing Remote Desktop sessions to freeze under specific conditions on Windows Server 2025 machines. The company detailed on the Windows Release Health Dashboard that this problem stems from a security update released on February 11.
Remote desktop sessions allow users to access and control a computer from a different location using another device. This service is useful for remote work, technical support, or accessing files and applications on a computer that users can’t physically reach. It allows users to interact with the remote computer as if they were sitting right in front of it. Remote desktop offers security features (such as encryption) to ensure that the connection is secure and the data remains protected.
“After installing the February 2025 Security update (KB5051987), released February 11, 2025, and later updates, on Windows Server 2025 devices, you might experience Remote Desktop sessions freezing shortly after connection,” Microsoft explained. “When this issue occurs, mouse and keyboard input become unresponsive within the session, requiring users to disconnect and reconnect.”
Currently, Microsoft is working on a fix for the Remote Desktop disconnection issue affecting Windows Server 2025 machines. However, there is no estimated release date for the patch yet.
Microsoft also found a similar issue in Windows 11 version 24H2, where Remote Desktop sessions would disconnect after 65 seconds when connecting to Windows Server 2016 or earlier. This problem first appeared with the January 2025 updates and worsened after the March security update. Microsoft resolved it with the KB5052093 optional update, released in February 2025.
Earlier this week, Microsoft released a patch to fix another issue that affected some USB-connected dual-mode printers that support both US Print and IPP Over USB protocols. This bug caused these printers to unexpectedly output incorrect or unwanted text.