Hide/Unhide Logon Names

If you want to hide or unhide the names of users that are displayed on the initial logon screen:

1. Start Regedit
2. Go to HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ Winlogon \ SpecialAccounts \ UserList
3. Add a DWORD with the name of the user account you want to hide
4. Make sure it has a value of 0
5. If there is an existing account, you can unhide it by giving it a value of 1