QuickBooks Desktop Won’t Open? Here Are Solutions QuickBooks Desktop not opening can result from outdated software, corrupted program components, or conflicting applications. Running the QuickBooks Install Diagnostic Tool, repairing the software, and updating Windows can resolve the issue. Checking antivirus and firewall settings also ensures that QuickBooks is allowed access, helping the program start properly and regain full operational functionality. ----- https://www.writershelf.com/article/3-quick-ways-to-fix-the-quickbooks-desktop-wont-open-error