Do not display last username on logon screen in Windows
windows logonUsing Group Policy
Type secpol.msc
in Windows Start Search and hit Enter. This will open the Local Security Policy Editor. Navigate to Security Settings > Local Policies > Security Options.
Now on the right-hand side, look for Interactive Logon: Do not display last username. Right click on it and open its Properties. Set it to Enabled > Apply.
Using Registry Editor
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System]
"dontdisplaylastusername"=dword:00000001
Reference: http://www.thewindowsclub.com/make-windows-7-8-use-classic-logon-screen
Written on May 17, 2018