Set Default Domain in Logon Dropdown Box via Remote Desktop
If you have users that try to log in without ensuring the correct domain is selected in the dropdown box, run the registry file below to set it to automatically default to the correct domain. Replace the “DOMAIN” text with the name of you domain, place in a *.REG file, and double click.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"DefaultDomainName"="DOMAIN"
"AltDefaultDomainName"="DOMAIN"