Microsoft fixes Windows 11 Remote Desktop failures for non-admins
KB5127936, out October 28, clears error 0xC000000D on hosts with Administrator protection; Windows Server is not affected.
KB5127936, out October 28, clears error 0xC000000D on hosts with Administrator protection; Windows Server is not affected.
KB5127936 stops connections stuck on Connecting or reporting a port already in use; a single-protocol workaround remains.
Non-admin sessions failed with error 0xC000000D on hosts using Administrator protection after the September 22 preview.
KB5127936, released October 28, restores non-admin connections that failed with error 0xC000000D when Administrator protection is enabled.
The optional October 2026 preview moves 25H2 and 26H2 to builds 26200.9818 and 26300.9818 and may add one Secure Boot restart.
October 26 updates target offline Windows systems after eight April 2025 intermediate keys proved recoverable.
After an initial failure, automatic IKEv2 and SSTP fallback can leave connections stuck or report a port already in use.
The October 2026 Patch Tuesday update KB5127648 fixes the issue on Windows 11 24H2 and later.
Microsoft says Windows 11 update KB5127648 can gray out Smart App Control so it cannot be turned on.
Windows Server 2022 left mainstream support on October 13, 2026, with security updates until October 2031.
Microsoft fixed a Windows 11 update bug causing black screens and Explorer crashes, mainly on AVD with FSLogix.
Microsoft patched a Windows 11 bug that black-screens desktops and crashes Explorer, mainly on Azure Virtual Desktop with FSLogix.
Microsoft's October updates fix Always On VPN failures on Windows 11 caused by September 2026 patches.
Microsoft says recent Windows 11 updates can break Remote Desktop for non-admins when Administrator protection is enabled.
Doyensec showed patched CVE-2026-83498 can run code inside Windows SmartScreen’s VBS enclave.
Microsoft patched over 1,400 flaws, including an exploited Windows Shell bypass, CVE-2026-96951.
Microsoft warns outdated Windows PCs may lose Windows Update and security fixes when certificates expire in 2027.
Unsupported Windows devices will lose security updates after Windows Update certificates expire in 2027.
Microsoft urges teams to test PKI, HSMs, and appliances for post-quantum certificate authentication.
Microsoft's post-quantum TLS pilot asks enterprises to test ML-DSA certificates before production migration.
Microsoft launched the Surface Laptop Ultra and RTX Spark Dev Box with Windows 11 local AI and agent controls.
Microsoft unveiled Nvidia RTX Spark Surface AI PCs and Windows 11 containers that sandbox AI agents.
CVE-2026-13043 lets local users bypass WatchGuard's PSKMAD driver checks and read kernel and process memory.
Microsoft says Windows 11 KB5124010 can crash apps that use built-in AC-3 audio decoding.
Microsoft says Windows 11 preview update KB5124010 crashes some games and apps that use AC-3 audio.
Windows 11 26H2 enables settings backup by default on eligible unconfigured Entra-joined commercial devices.
Microsoft enables Windows 11 26H2 settings backup by default when the policy is left unconfigured.
Microsoft now enables Windows settings backup by default on eligible Entra-joined Windows 11 26H2 devices.
Microsoft is rolling out Windows 11 26H2 as a small enablement package that resets the support lifecycle.
Microsoft says Windows 11 preview updates can black-screen Azure Virtual Desktop sessions that use FSLogix.
Microsoft says a Windows 11 update can black-screen Azure Virtual Desktop sessions after sign-in.
Microsoft confirms recent Windows updates can leave Azure Virtual Desktop sessions stuck on a black screen.
Microsoft shipped optional Windows 11 preview KB5124010, a non-security update with 46 quality fixes and feature changes.
Microsoft fixed a September update bug that stopped File History backups on Windows 10 and 11.
Microsoft disrupted EvilTokens, an AI-powered phishing platform that compromised 12,000+ email accounts across 10,000+ organizations.
September 2026 Windows updates break Always On VPN connections when automatic protocol selection is enabled.
Microsoft's Windows 11 26H1 update KB5124012 widens Secure Boot certificate deployment and patches two elevation flaws.
Microsoft September 2026 updates break Windows File History backups, prompting users to manually verify backup status.
Microsoft patched CVE-2026-85889 (CVSS 10.0), a missing-auth flaw in Azure AI Foundry enabling unauthenticated network privilege escalation; no exploitation observed.
Microsoft patched a CVSS 10.0 missing-authentication privilege escalation flaw, CVE-2026-85889, in Azure AI Foundry, already fully mitigated server-side.
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