Just to clarify, are trying to change your QuickBooks company file or the Online Account password? If it's for the company file, the steps below will guide you on how to change it:
In the QuickBooks Desktop Login window, click the I forgot my password hyperlink.
Fill out the required information: - Your License Number for the version of QuickBooks you’re using. You can press F2 from the login window to see your license number. - The Name, Email Address, Phone number,and ZIP code you originally used when you purchased the product.
Click OK. Then, we'll send you a code at your registered email address.
Get the code from your email and enter back in QuickBooks. The program will then guide you through creating a new admin password.