I'll take it as you're referring to download the latest version of QuickBooks Desktop, Cary3.
I've got the steps on how to do it:
Once downloaded, you're good to install it to your desktop. Then, activate it afterward. You can check these articles for the detailed steps to install and activate QuickBooks Desktop:
If you have trouble downloading the program, you can contact our Phone Support team by scheduling a callback. You can do that by selecting Talk to a Specialist in the Choose a way to connect with us page.
Just a heads up, we only have limited agents who can assist you on Monday, May 25, 2020 due to Memorial Day.
As always, you can get back to me if you need help. I'll be happy to help. Stay safe!