The error message "QuickBooks Desktop Fatal Error" indicates a serious problem with the QuickBooks Desktop program that could cause the system to crash or terminate the application. In order to avoid data loss or functional disruption, this error requires prompt treatment. The accounting software must be troubleshooted and resolved in order to be functional again and to guarantee seamless operation. Please give us a call at 1.855.856.0042 if you would want to discuss QuickBooks support in private.