I can share some information about getting a supported QuickBooks Desktop, @jdpatrick.
If you're referring to the last standalone or non-subscription version of QuickBooks Desktop, please note that it is QuickBooks Desktop Pro 2021. This version will be supported until May 2024.
If you need assistance purchasing QuickBooks Desktop Pro Plus or choosing the right version of QuickBooks that suits your needs, our Sales department can help you out. For more information, you can follow the steps provided by JanbonN above.
Then, refer to the following article on how to install and set up QuickBooks Desktop, whether you are using Pro, Premier, or Enterprise versions: Install QuickBooks Desktop. It'll also provide instructions on how to prepare computers and networks for installation.
Let me know if you need further help getting QuickBooks Desktop. The Community is always here to answer them. Have a wonderful day!
