QuickBooks Unrecoverable error is a commonly occurring error in the application that can take place while accessing the company file in the application. There are various other instances when you might get this error, such as sending the payroll via direct deposit, saving a record or transaction, or running Verify or Rebuild function. Missing Windows or QuickBooks updates are some of the primary reasons behind the error. To know about more reasons behind the error and resolve them, you may dial our QuickBooks error support helpline number (844)-888-4666.