Although QuickBooks Desktop (QBDT) 2019 was successfully installed on your Windows 11 device, troubleshooting methods may not effectively resolve any issues you encounter, as this version is already phase-out, @SteveB100. We'll provide more details below to address your inquiry.

Since you're using QBDT 2019, you'll no longer receive patch updates for this version, and tasks that require internet access, such as connecting bank accounts and using add-ons, will be obsolete. The troubleshooting method will no longer guarantee to resolve issues within the program. Additionally, Windows 11 is not compatible with QuickBooks 2021 and older versions, and the program no longer offers one-time purchase products, so users must sign up for a yearly subscription plan to continue using the program and its features.

You can check this page to learn more about specs designed for QBDT 2021: System requirements for QuickBooks Desktop 2021.

On the other hand, here's an article in case you want to upgrade the program to its latest version: Upgrade QuickBooks Desktop for Windows and Mac.
 

The comment section is always open if you have more questions about the program or require assistance resolving QuickBooks-related concerns. Rest assured, we'll be around to help you out as soon as possible.