NOTE: It is important to use a strong and unique password for the built-in administrator account to ensure the security of your Active Directory environment.
Log in to ADManager Plus with the built-in administrator account.
Click the Profile icon in the top-right corner of the screen and click My Account.
In the Change Password dialog box, enter the current password for the built-in administrator account in the Old Password field.
Enter a new password in the New Password field and confirm it in the Confirm New Password field.
Click Change Password button to save the changes.
Once the password has been changed, you will need to log out and log back in with the new password to continue using ADManager Plus.