For this feature to work, the computers must be configured to hide the user account from the Windows logon screen and display the User Name and Password fields during logon.
This policy is mandatory for the Login User feature to be enabled in Deep Freeze.To hide the last logged user name on a Windows welcome screen, go to Local Security Policy > Security Settings > Local Policies > Security Options > Interactive Logon: Don't Display Last Signed In (Username at Sign-in) > select Enabled. Note that this policy is disabled by default.
• Go to Local Security Policy > Security Settings > Local Policies > Security Options > Interactive Logon: Do not Require CTRL+ALT+DELETE > select Enabled.
• Go to Local Computer Policy > Administrative Templates > Windows Components > Windows Logon Options > Disable/enable Software Secure Attention Sequence (or SAS).