Welcome to the Community and thank you for choosing our service, @barb-dave-henry.
Once you've already uninstalled the QBO App on your computer, you can download it again using this link: https://quickbooks.intuit.com/apps/.
Here's how to install the app on Windows:
- Double-click the file you downloaded to launch the installer.
- Select Next, then choose Agree & Install.
- Wait for the installer to run the rest of the way through.
- Select Finish.
However, if you're using Mac or other Windows versions, you can check this article for the installation steps: QuickBooks App for Windows and Mac: General support.
If you need any assistance working in the program or have questions regarding our services, let me know. I'm always here to help. Have a great day!