Hiding Switch user is only supported as a computer‑level (device) policy, not as a per‑user policy.
From the available policies:
- Hide entry points for Fast User Switching (which hides Switch user in the sign‑in screen, Start menu, and Task Manager) is exposed as:
- MDM CSP:
./Device/Vendor/MSFT/Policy/Config/WindowsLogon/HideFastUserSwitchingwith values 0 (disabled/visible) or 1 (enabled/hidden). - Group Policy: Computer Configuration > Administrative Templates > System > Logon > Hide entry points for Fast User Switching.
- Registry (computer scope):
HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\HideFastUserSwitching.
- MDM CSP:
This setting is explicitly device‑scoped (Computer Configuration / Device CSP). There is no corresponding User Configuration GPO or user‑scope CSP/registry setting for hiding Switch user or Fast User Switching only for one specific AD account.
Therefore, it cannot be targeted to a single user via a user GPO or a per‑user registry value; it applies to the whole machine when enabled.
References: