A security account password is created to make sure that no other user can log on using that user name. By default, Microsoft Access assigns a blank password to the Admin user account, and to any new user accounts you create in your workgroup.
You can find out which workgroup is current or change workgroups by using the Workgroup Administrator.
A password can range from 1 to 20 characters, and can include any characters except ASCII character 0 (null). Passwords are case-sensitive.
Caution You can't recover your password if you forget it, so be sure to store it in a safe place. If you forget your password, a user logged on with an administrator account (a member of the Admins group in the workgroup in which the account and password were created) must clear the password before you can log on.