Add "Administrator" to your welcome logon screen:
Save the text below "-----" in a file named anything.reg, then double click to import.
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Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList]
"Administrator"=dword:00000001
Save the text below "-----" in a file named anything.reg, then double click to import.
-----------------------------------------------------
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList]
"Administrator"=dword:00000001