The Hide entry points for Fast User Switching machine setting should be configured correctly. By enabling the policy, Administrators hide the Switch user button in the Logon UI, the Start menu and the Task Manager. Fix: (1) GPO: Computer Configuration\Administrative Templates\System\Logon\Hide entry points for Fast User Switching (2) KEY: HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\HideFastUserSwitching