Windows · Product news
2026-09-17NormalReleased
Remote Desktop Services might stop responding after Sept. 2026 security update
Some Windows devices with Remote Desktop enabled might experience Remote Desktop Services (RDS) instability.
What changed
Microsoft documented a security change for Remote Desktop Services might stop responding after Sept. 2026 security update.
Why it matters
RDS instability can interrupt remote access, sign-in, MMC, File Explorer and Windows Update on patched clients and servers.
Known limitations
- Availability, prerequisites and rollout scope remain authoritative in the linked Microsoft documentation.
Now check
- Deploy the applicable September 14 OOB update or a later cumulative update
- Retest RDP sessions, sign-in, MMC, RDS Licensing Diagnoser and Windows Update
- Confirm temporary Group Policy mitigation handling for the affected Windows version