learn.microsoft.com Remote Desktop Services Issues Following September 2026 Windows Update
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- •Microsoft's September 2026 update caused RDS instability across all Windows versions.
- •Users are experiencing logouts and connection failures after the update.
- •Microsoft is investigating the issue and plans to release a fix in a future update.
On September 8, 2026, Microsoft released security updates that caused Remote Desktop Services (RDS) to become unstable across all supported versions of Windows. Users reported being logged out and unable to log back in, with some experiencing performance issues on Windows Server. Microsoft confirmed these issues in their 'Known Issues' section, indicating that RDS might fail after several minutes, leading to sign-in problems and servers hanging during configuration. The updates affected Windows 10, Windows 11, and various Windows Server versions. Affected organizations are advised to temporarily restore connectivity by restarting affected virtual machines. Microsoft is working on a resolution for these issues and will provide updates as they become available.
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