The Logon box is displayed only if the logon procedure has been activated for your Microsoft Access workgroup. Once the logon procedure has been activated, you must identify yourself at startup by entering a valid user account name. If a password has been added to a user account, you must also enter the password. Passwords are case-sensitive.
If necessary, change to the workgroup that contains the user account you want to use to log on, by using the Microsoft Access Workgroup Administrator.