GoKawiilMicrosoft confirms September patches break Remote Desktop Services on Windows Server
Microsoft has verified that its September 2026 security updates are causing Remote Desktop Services failures across Windows Server 2012 and later, plus Windows 10 and 11. Affected systems show RDP connections dropping after a few minutes, sign-in errors, servers stuck loading the Remote Desktop Configuration screen, and related tools like MMC and File Explorer becoming unresponsive.
GoKawiil's interpretation of the reporting above, not reported fact.
RDS is a core tool for IT teams and remote workers accessing servers and virtual machines, so widespread failures can halt business operations that depend on remote access. The only current workarounds—restarting VMs or uninstalling the patch—force administrators to choose between stability and losing this month's security protections, leaving enterprises exposed until Microsoft ships a permanent fix.
- September 2026 Patch Tuesday updates break RDS on Windows Server 2012+ and Windows 10/11.
- Microsoft offers a Group Policy mitigation and VM restart as temporary workarounds.
- Rolling back the update restores RDP but removes this month's security fixes.
Source: bleepingcomputer.com, 2026-09-14
Published there as: “Microsoft: September updates cause RDS failures on Windows Server”
Read the original report → The summary and analysis above are GoKawiil's own, written from reporting by the source above. Facts and quotes belong to the original publisher.