Thanks for joining the thread and providing detailed information about your concern, @5280DEN.

Right now, QuickBooks Desktop (QBDT) no longer supports Windows 7. Thus, we recommend upgrading to Windows 10. However, you can still use the older versions of QBDT but upgrading from Windows 7 to Windows 10 helps to protect your QuickBooks data, including your customers' and employees' sensitive information.

In case you'd want to upgrade the operating system, I recommend doing a back up of your company files using an external drive or a backup service such as Intuit Data Protect.

To learn about the minimum system requirements for QBDT, see this article: System requirements for QuickBooks Desktop 2021.

If you have further questions, please let me know in the comment section. I'll be happy to answer it for you. Have a good day.