I'm here to offer some help, bdp2021.

One possible reason why QuickBooks Desktop (QBDT) won't open is when the software icon is clicked or selected multiple times. Issues with opening QuickBooks can be resolved by using the Run Quick Fix my Program found when your download and install the QuickBooks Tools Hub.

Follow the steps below to fix this:

1. Close QuickBooks.
2. Download the most recent version (1.4.0.0) of the QuickBooks Tool Hub. Save the file somewhere you can easily find it.
3. Open the file you downloaded (QuickBooksToolHub.exe).
4. Follow the on-screen steps to install and agree to the terms and conditions.
5. When the install finishes, double-click the icon on your Windows desktop to open the tool hub.
6. Once the  QuickBooks Tool Hub is open, select Program Problems.
7. Select Quick Fix my Program.
8. Start QuickBooks Desktop and open your data file.

To ensure the components are properly updated, please restart the computer after running the tool.

For additional troubleshooting options, please proceed to Solution 2 of this article: QuickBooks Desktop doesn't start or won't open.

If you need other helpful articles in the future, you can always visit our site: Help articles for QuickBooks Desktop.

Be sure to get back to me if you have follow-up questions. I'm always happy to help. Have a good day!