What to do if QuickBooks won't open?

If QuickBooks won't open, you can try some troubleshooting steps yourself before reaching out to the QuickBooks customer support. You can try restarting your computer, running QuickBooks Install Diagnostic Tool, checking for Windows updates, renaming the QuickBooks installation folder, creating a new Windows user account, or uninstalling and reinstalling QuickBooks. By doing all these things you can fix the problem and if none of these steps work, contact QuickBooks customer support for further assistance.