Microsoft fixes Windows 11 Remote Desktop failures affecting non-admin users with Administrator protection

Microsoft has resolved a Windows 11 issue where non-admin users could not connect over Remote Desktop to hosts with Administrator protection enabled, failing with error 0xC000000D and the message 'The token that was passed to the function is invalid.' The bug appeared after the 22 September non-security preview update KB5124010 or later, and affects Windows 11 24H2, 25H2, 26H1 and 26H2, with Windows Server not listed. The fix is in updates released on or after 28 October, including preview update KB5127936 for 25H2 and 26H2.

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