QuickBooks COM ErrorTable of Contents1 QuickBooks COM Error2 Download Windows 10 KB4338548 to resolve the COM error in QuickBooks Desktop2.1 TROUBLESHOOTING STEPS FOR QUICKBOOKS COM ERROR IN QUICKBOOKS DESKTOP (UPDATED SOLUTION 2020)2.2 COMPLETE UNINSTALL YOUR OUTLOOK AND REINSTALL IT2.3 RUN QUICKBOOKS IN COMPATIBILITY MODE2.4 ADDITIONAL WINDOWS USER TO AVOID COM ERROR IN QUICKBOOKS2.4.1 CONTACT QUICKBOOKS … Continue reading COM Error in QuickBooks Desktop 2020 (Windows 10)