I want to disable the password.
Source How to password protected database in Access 2013
If you want to remove the password, then navigate to Info menu and select Decrypt Database.
Then enter the password to remove the password protection for Access Database.
When trying to save that resulting database I cannot as I get the following message "You are trying to convert an encoded database. Decode the database, then try again"
Source Overview of Access security (MDB)
The simplest method of protection is to encode the database. Encoding a database compacts the database file and helps protect it
from being read by a word processor. Encoding a database that employs
no security measures has no effect, because anybody can open the
database and gain full access to all objects in the database. Encoding
is particularly useful when you transmit a database electronically, or
when your store it on floppy disk, tape, or compact disc.
Before you can encode or decode a Microsoft Access database, you must be either the owner of the database or, if the database employs
security measures, a member of the Admins group of the workgroup
information file that contains the accounts used to help protect the
database. You must also be able to open the database in exclusive
mode, which means you must have Open/Run and Open Exclusive
Decoding a database reverses the encoding.
To encode/decode the database:
File > Info > Users and Permissions > Encode/Decode Database