GoKawiilMicrosoft confirms Windows update bug breaks Remote Desktop for non-admins
Microsoft says that after installing the KB5124010 preview update or later, Remote Desktop connections can fail with error 0xC000000D on Windows 11 24H2, 25H2, 26H1 and 26H2 devices. The failures occur when the Administrator protection security feature is enabled, which affects enterprise-managed Remote Desktop host machines in particular. Microsoft has offered a temporary workaround—disabling Administrator protection via Intune or Group Policy—while it develops a permanent fix.
GoKawiil's interpretation of the reporting above, not reported fact.
The bug could disrupt remote work and IT management for organizations that rely on standardized security baselines, since Administrator protection is enabled by default in many enterprise configurations. This is at least the second time a Microsoft security feature tied to admin permissions has broken Remote Desktop functionality, following a similar fix in March 2025, which may raise questions among IT administrators about the stability of these protections. Until a permanent patch arrives, companies must weigh disabling a security feature against restoring remote access.
- Remote Desktop can fail with error 0xC000000D after installing KB5124010 or later updates on Windows 11 24H2/25H2/26H1/26H2.
- The issue stems from the Administrator protection feature, enabled by default in many enterprise security baselines.
- Microsoft recommends disabling Administrator protection via Intune or Group Policy as a temporary workaround while it works on a fix.
Source: bleepingcomputer.com, 2026-10-14
Published there as: “Microsoft: Recent Windows updates may trigger Remote Desktop failures”
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