Quickbooks 2019 will not launch

To fix issues that prevent QuickBooks Desktop (QBDT) from opening, use the Tool Hub to clear stuck background processes and repair the program.

Here's how:

1. Exit QuickBooks first.
2. Download the most recent version (1.6.0.8) of the QuickBooks Tool Hub. Save the file somewhere you can easily find it (like your Downloads folder or your Windows desktop). Note: If you've installed Tool Hub before, you can find out which version you have. Select the Home tab. The version will be at the bottom.
3. Run the file you downloaded (QuickBooksToolHub.exe).
4. Follow the on-screen instructions to complete the installation, and agree to the terms and conditions.
5. Once the installation is complete, open the tool hub by double-clicking its icon on your Windows desktop.

Note: If you can't find the icon, do a search in Windows for QuickBooks Tool Hub and select the program.

For more information on how to use the repair tool for QuickBooks Desktop for Windows, please consult the following article: Repair your QuickBooks Desktop for Windows.

Please respond to this post if you have additional concerns.

​@ka2007 Did you reinstall it on a new machine?