Hi, BrandieF.
Thanks for taking the time to reach out to us. I'm here to guide you to the right support so you can get the help you need.
To completely install the QuickBooks Desktop 2019, I recommend calling our QuickBooks Desktop Support Team. They have additional tools do pull up the account of your client and further assist on resetting the password in QuickBooks company file.
Here's how you can contact our technical support:
- Follow the Official Intuit Contact link.
- Select your QuickBooks product.
- Select an issue type from the menu below, you need only to select two options for the contact information to appear.
- Click Get Phone Number at the bottom.
For additional reference, you can check this article to learn more about installing QuickBooks Desktop.
Please let me know how it goes. I'll be around to help if you have any other questions about installing QuickBooks.