There Is no problem to remove switch user in windows 8, 8.1 or win 10 at / from Logon screen!
You can use this solution: ... Auto Logon Windows 8 without password!
Or disable other Windows-8 users :
... Manage Users in Windows-8 (add, remove, enable, delete)!
... How can I change the administrator, Windows 8 (user)?
... How to change the Windows 8 user password, remove or create?
... How to switch user accounts on windows 8!
FAQ 102: Updated on: May 9th 2018 18:56