Microsoft has announced a definitive fix for a technical issue that affected Windows users, preventing standard users (non-administrators) from connecting to devices via the Remote Desktop feature. This issue specifically appeared when the "Administrator protection" feature was enabled, a security feature that Microsoft began rolling out in October 2025 and which became enabled by default in organizations adopting specific security standards after the installation of the October 2026 updates.
Details of the Technical Glitch
According to technical reports, users were encountering a software error with the code 0xC000000D when attempting to establish a remote connection. Microsoft confirmed that this glitch mainly affected managed devices in work environments using Remote Desktop as a host, following the installation of the non-security preview update KB5124010 released in September 2026, and subsequent updates on Windows 11 version 24H2 and later.
What Has Practically Changed?
Microsoft has rolled out a fundamental fix for the issue through preview update KB5127936 released on October 28, 2026. The company recommends all system administrators and affected users to install this update or subsequent security updates to ensure connection stability and receive necessary security improvements.
Alternative Options for Organizations
For organizations that do not wish to install preview updates and prefer to wait for the upcoming monthly cumulative updates (Patch Tuesday) next month, Microsoft provided a temporary workaround consisting of disabling the "Administrator protection" feature. This can be done by resetting the "User Account Control Type Of Admin Approval Mode" policy through the Microsoft Intune platform or via Group Policy.
This action comes as part of a series of fixes that Microsoft was recently forced to release to address similar software conflicts in Remote Desktop services, emphasizing the importance of testing updates in work environments prior to wide deployment, especially when enabling new security features related to access privileges.