If you are facing Quickbooks won't open issue, you can download and Launch the QuickBooks Install Diagnostic tool,
Launch the QuickBooks Tool Hub.
Select Installation Issues in the tools hub.
Install the diagnostic tool for QuickBooks. Run the tool. It may take up to 20 minutes.
Restart your computer after the tool finishes.
Open your data file in QuickBooks Desktop.
To know more about Quickbooks install diagnostic tool check out - https://opencloudmanifesto.org..../quickbooks-install-