Show Administrator on Welcome Screen

1. Start type "control userpasswords2".
2. Select administrator account, click reset password (input new pass) and hit "OK".
3. Start type "regedit".
4. HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows NT > CurrentVersion > Winlogon > SpecialAccounts > UserList.
5. Create "DWORD (32bit) Value" with Value Name: Administrator and Value Data: 1